Home / 1,125,630,415.18-1,553,370,120.20-623,871,592.59

Finding the Fourth Proportional to 1,125,630,415.18, 1,553,370,120.20 and 623,871,592.59

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Solution

The fourth proportional to 1,125,630,415.18, 1,553,370,120.20 and 623,871,592.59 is: 860,942,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,630,415.18 : 1,553,370,120.20 = 623,871,592.59 : x
  2. Step 2: Convert to fraction form
    1,125,630,415.18/1,553,370,120.20 = 623,871,592.59/x
  3. Step 3: Cross multiply
    1,125,630,415.18x = 1,553,370,120.20 × 623,871,592.59
  4. Step 4: Simplify right side
    1,125,630,415.18x = 969,103,490,770,893,824
  5. Step 5: Solve for x
    x = 969,103,490,770,893,824/1,125,630,415.18
  6. Step 6: Final answer
    x = 860,942,879.39

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Half scale
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Double scale
Find fourth proportional to 1,125,630,416.18, 1,553,370,121.58 and 623,871,593.59
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.