Home / 100,998,628.31-139,378,166.87-56,344,600.59

Finding the Fourth Proportional to 100,998,628.31, 139,378,166.87 and 56,344,600.59

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Solution

The fourth proportional to 100,998,628.31, 139,378,166.87 and 56,344,600.59 is: 77,755,582.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,998,628.31 : 139,378,166.87 = 56,344,600.59 : x
  2. Step 2: Convert to fraction form
    100,998,628.31/139,378,166.87 = 56,344,600.59/x
  3. Step 3: Cross multiply
    100,998,628.31x = 139,378,166.87 × 56,344,600.59
  4. Step 4: Simplify right side
    100,998,628.31x = 7,853,207,142,974,798
  5. Step 5: Solve for x
    x = 7,853,207,142,974,798/100,998,628.31
  6. Step 6: Final answer
    x = 77,755,582.18

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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.