Home / 128,755,903.96-177,680,683.82-70,809,151.96

Finding the Fourth Proportional to 128,755,903.96, 177,680,683.82 and 70,809,151.96

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Solution

The fourth proportional to 128,755,903.96, 177,680,683.82 and 70,809,151.96 is: 97,715,274.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,755,903.96 : 177,680,683.82 = 70,809,151.96 : x
  2. Step 2: Convert to fraction form
    128,755,903.96/177,680,683.82 = 70,809,151.96/x
  3. Step 3: Cross multiply
    128,755,903.96x = 177,680,683.82 × 70,809,151.96
  4. Step 4: Simplify right side
    128,755,903.96x = 12,581,418,540,967,092
  5. Step 5: Solve for x
    x = 12,581,418,540,967,092/128,755,903.96
  6. Step 6: Final answer
    x = 97,715,274.83

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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.