Home / 28,996,282.39-40,013,845.41-15,943,449.91

Finding the Fourth Proportional to 28,996,282.39, 40,013,845.41 and 15,943,449.91

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Solution

The fourth proportional to 28,996,282.39, 40,013,845.41 and 15,943,449.91 is: 22,001,397.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996,282.39 : 40,013,845.41 = 15,943,449.91 : x
  2. Step 2: Convert to fraction form
    28,996,282.39/40,013,845.41 = 15,943,449.91/x
  3. Step 3: Cross multiply
    28,996,282.39x = 40,013,845.41 × 15,943,449.91
  4. Step 4: Simplify right side
    28,996,282.39x = 637,958,740,000,818.38
  5. Step 5: Solve for x
    x = 637,958,740,000,818.38/28,996,282.39
  6. Step 6: Final answer
    x = 22,001,397.68

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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.