Home / 103,398,398.28-142,690,657.86-56,988,770.76

Finding the Fourth Proportional to 103,398,398.28, 142,690,657.86 and 56,988,770.76

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Solution

The fourth proportional to 103,398,398.28, 142,690,657.86 and 56,988,770.76 is: 78,644,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,398,398.28 : 142,690,657.86 = 56,988,770.76 : x
  2. Step 2: Convert to fraction form
    103,398,398.28/142,690,657.86 = 56,988,770.76/x
  3. Step 3: Cross multiply
    103,398,398.28x = 142,690,657.86 × 56,988,770.76
  4. Step 4: Simplify right side
    103,398,398.28x = 8,131,765,190,377,133
  5. Step 5: Solve for x
    x = 8,131,765,190,377,133/103,398,398.28
  6. Step 6: Final answer
    x = 78,644,982.18

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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.