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Finding the Fourth Proportional to 286,502,140.80, 429,753,211.20 and 286,502,140.80

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Solution

The fourth proportional to 286,502,140.80, 429,753,211.20 and 286,502,140.80 is: 429,753,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,502,140.80 : 429,753,211.20 = 286,502,140.80 : x
  2. Step 2: Convert to fraction form
    286,502,140.80/429,753,211.20 = 286,502,140.80/x
  3. Step 3: Cross multiply
    286,502,140.80x = 429,753,211.20 × 286,502,140.80
  4. Step 4: Simplify right side
    286,502,140.80x = 123,125,215,024,474,544
  5. Step 5: Solve for x
    x = 123,125,215,024,474,544/286,502,140.80
  6. Step 6: Final answer
    x = 429,753,211.20

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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.