Home / 154,327,251.20-212,971,839.89-83,762,886.74

Finding the Fourth Proportional to 154,327,251.20, 212,971,839.89 and 83,762,886.74

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Solution

The fourth proportional to 154,327,251.20, 212,971,839.89 and 83,762,886.74 is: 115,592,910.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,327,251.20 : 212,971,839.89 = 83,762,886.74 : x
  2. Step 2: Convert to fraction form
    154,327,251.20/212,971,839.89 = 83,762,886.74/x
  3. Step 3: Cross multiply
    154,327,251.20x = 212,971,839.89 × 83,762,886.74
  4. Step 4: Simplify right side
    154,327,251.20x = 17,839,136,102,031,810
  5. Step 5: Solve for x
    x = 17,839,136,102,031,810/154,327,251.20
  6. Step 6: Final answer
    x = 115,592,910.29

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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.