Home / 85,847,428.80-128,726,906.40-31,967,006.40

Finding the Fourth Proportional to 85,847,428.80, 128,726,906.40 and 31,967,006.40

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Solution

The fourth proportional to 85,847,428.80, 128,726,906.40 and 31,967,006.40 is: 47,934,037.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,847,428.80 : 128,726,906.40 = 31,967,006.40 : x
  2. Step 2: Convert to fraction form
    85,847,428.80/128,726,906.40 = 31,967,006.40/x
  3. Step 3: Cross multiply
    85,847,428.80x = 128,726,906.40 × 31,967,006.40
  4. Step 4: Simplify right side
    85,847,428.80x = 4,115,013,840,741,001
  5. Step 5: Solve for x
    x = 4,115,013,840,741,001/85,847,428.80
  6. Step 6: Final answer
    x = 47,934,037.14

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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.