Home / 287,425,472.60-431,138,208.90-82,960,218.20

Finding the Fourth Proportional to 287,425,472.60, 431,138,208.90 and 82,960,218.20

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Solution

The fourth proportional to 287,425,472.60, 431,138,208.90 and 82,960,218.20 is: 124,440,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,425,472.60 : 431,138,208.90 = 82,960,218.20 : x
  2. Step 2: Convert to fraction form
    287,425,472.60/431,138,208.90 = 82,960,218.20/x
  3. Step 3: Cross multiply
    287,425,472.60x = 431,138,208.90 × 82,960,218.20
  4. Step 4: Simplify right side
    287,425,472.60x = 35,767,319,884,701,180
  5. Step 5: Solve for x
    x = 35,767,319,884,701,180/287,425,472.60
  6. Step 6: Final answer
    x = 124,440,327.30

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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.