Home / 157,127,915.02-216,843,280.60-87,513,326.86

Finding the Fourth Proportional to 157,127,915.02, 216,843,280.60 and 87,513,326.86

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Solution

The fourth proportional to 157,127,915.02, 216,843,280.60 and 87,513,326.86 is: 120,772,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,127,915.02 : 216,843,280.60 = 87,513,326.86 : x
  2. Step 2: Convert to fraction form
    157,127,915.02/216,843,280.60 = 87,513,326.86/x
  3. Step 3: Cross multiply
    157,127,915.02x = 216,843,280.60 × 87,513,326.86
  4. Step 4: Simplify right side
    157,127,915.02x = 18,976,676,892,542,496
  5. Step 5: Solve for x
    x = 18,976,676,892,542,496/157,127,915.02
  6. Step 6: Final answer
    x = 120,772,154.90

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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.