Home / 261,280,044.68-391,928,555.02-77,032,070.74

Finding the Fourth Proportional to 261,280,044.68, 391,928,555.02 and 77,032,070.74

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Solution

The fourth proportional to 261,280,044.68, 391,928,555.02 and 77,032,070.74 is: 115,550,608.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,280,044.68 : 391,928,555.02 = 77,032,070.74 : x
  2. Step 2: Convert to fraction form
    261,280,044.68/391,928,555.02 = 77,032,070.74/x
  3. Step 3: Cross multiply
    261,280,044.68x = 391,928,555.02 × 77,032,070.74
  4. Step 4: Simplify right side
    261,280,044.68x = 30,191,068,175,326,620
  5. Step 5: Solve for x
    x = 30,191,068,175,326,620/261,280,044.68
  6. Step 6: Final answer
    x = 115,550,608.59

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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.