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Finding the Fourth Proportional to 287,385,732,001.90, 431,078,598,002.85 and 287,385,732,001.90

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Solution

The fourth proportional to 287,385,732,001.90, 431,078,598,002.85 and 287,385,732,001.90 is: 431,078,598,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,385,732,001.90 : 431,078,598,002.85 = 287,385,732,001.90 : x
  2. Step 2: Convert to fraction form
    287,385,732,001.90/431,078,598,002.85 = 287,385,732,001.90/x
  3. Step 3: Cross multiply
    287,385,732,001.90x = 431,078,598,002.85 × 287,385,732,001.90
  4. Step 4: Simplify right side
    287,385,732,001.90x = 123,885,838,437,401,845,825,536
  5. Step 5: Solve for x
    x = 123,885,838,437,401,845,825,536/287,385,732,001.90
  6. Step 6: Final answer
    x = 431,078,598,002.85

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1.5x scale

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.