Home / 8,125,113.60-12,190,780.80-7,997,587.20

Finding the Fourth Proportional to 8,125,113.60, 12,190,780.80 and 7,997,587.20

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Solution

The fourth proportional to 8,125,113.60, 12,190,780.80 and 7,997,587.20 is: 11,999,442.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125,113.60 : 12,190,780.80 = 7,997,587.20 : x
  2. Step 2: Convert to fraction form
    8,125,113.60/12,190,780.80 = 7,997,587.20/x
  3. Step 3: Cross multiply
    8,125,113.60x = 12,190,780.80 × 7,997,587.20
  4. Step 4: Simplify right side
    8,125,113.60x = 97,496,832,484,085.77
  5. Step 5: Solve for x
    x = 97,496,832,484,085.77/8,125,113.60
  6. Step 6: Final answer
    x = 11,999,442.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.