Home / 56,693,709.45-78,195,545.01-42,755,651.28

Finding the Fourth Proportional to 56,693,709.45, 78,195,545.01 and 42,755,651.28

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Solution

The fourth proportional to 56,693,709.45, 78,195,545.01 and 42,755,651.28 is: 58,971,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,693,709.45 : 78,195,545.01 = 42,755,651.28 : x
  2. Step 2: Convert to fraction form
    56,693,709.45/78,195,545.01 = 42,755,651.28/x
  3. Step 3: Cross multiply
    56,693,709.45x = 78,195,545.01 × 42,755,651.28
  4. Step 4: Simplify right side
    56,693,709.45x = 3,343,301,454,097,104.50
  5. Step 5: Solve for x
    x = 3,343,301,454,097,104.50/56,693,709.45
  6. Step 6: Final answer
    x = 58,971,294.81

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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.