Home / 1,125,630,417.50-1,553,370,123.40-623,871,594.90

Finding the Fourth Proportional to 1,125,630,417.50, 1,553,370,123.40 and 623,871,594.90

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Solution

The fourth proportional to 1,125,630,417.50, 1,553,370,123.40 and 623,871,594.90 is: 860,942,882.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,630,417.50 : 1,553,370,123.40 = 623,871,594.90 : x
  2. Step 2: Convert to fraction form
    1,125,630,417.50/1,553,370,123.40 = 623,871,594.90/x
  3. Step 3: Cross multiply
    1,125,630,417.50x = 1,553,370,123.40 × 623,871,594.90
  4. Step 4: Simplify right side
    1,125,630,417.50x = 969,103,496,355,567,872
  5. Step 5: Solve for x
    x = 969,103,496,355,567,872/1,125,630,417.50
  6. Step 6: Final answer
    x = 860,942,882.57

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Double scale
Find fourth proportional to 1,125,630,418.50, 1,553,370,124.78 and 623,871,595.90
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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.