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Finding the Fourth Proportional to 191,738,265.60, 287,607,398.40 and 159,851,805.60

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Solution

The fourth proportional to 191,738,265.60, 287,607,398.40 and 159,851,805.60 is: 239,777,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,738,265.60 : 287,607,398.40 = 159,851,805.60 : x
  2. Step 2: Convert to fraction form
    191,738,265.60/287,607,398.40 = 159,851,805.60/x
  3. Step 3: Cross multiply
    191,738,265.60x = 287,607,398.40 × 159,851,805.60
  4. Step 4: Simplify right side
    191,738,265.60x = 45,974,561,938,158,544
  5. Step 5: Solve for x
    x = 45,974,561,938,158,544/191,738,265.60
  6. Step 6: Final answer
    x = 239,777,708.40

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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.