Home / 85,293,008.10-127,939,512.15-71,121,248.10

Finding the Fourth Proportional to 85,293,008.10, 127,939,512.15 and 71,121,248.10

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Solution

The fourth proportional to 85,293,008.10, 127,939,512.15 and 71,121,248.10 is: 106,681,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,008.10 : 127,939,512.15 = 71,121,248.10 : x
  2. Step 2: Convert to fraction form
    85,293,008.10/127,939,512.15 = 71,121,248.10/x
  3. Step 3: Cross multiply
    85,293,008.10x = 127,939,512.15 × 71,121,248.10
  4. Step 4: Simplify right side
    85,293,008.10x = 9,099,217,785,413,114
  5. Step 5: Solve for x
    x = 9,099,217,785,413,114/85,293,008.10
  6. Step 6: Final answer
    x = 106,681,872.15

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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.