Home / 345,397,110.30-517,948,190.58-199,931,079.78

Finding the Fourth Proportional to 345,397,110.30, 517,948,190.58 and 199,931,079.78

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Solution

The fourth proportional to 345,397,110.30, 517,948,190.58 and 199,931,079.78 is: 299,811,254.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,397,110.30 : 517,948,190.58 = 199,931,079.78 : x
  2. Step 2: Convert to fraction form
    345,397,110.30/517,948,190.58 = 199,931,079.78/x
  3. Step 3: Cross multiply
    345,397,110.30x = 517,948,190.58 × 199,931,079.78
  4. Step 4: Simplify right side
    345,397,110.30x = 103,553,941,012,756,624
  5. Step 5: Solve for x
    x = 103,553,941,012,756,624/345,397,110.30
  6. Step 6: Final answer
    x = 299,811,254.71

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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.