Home / 915,418,981.80-1,373,065,487.10-293,625,138.60

Finding the Fourth Proportional to 915,418,981.80, 1,373,065,487.10 and 293,625,138.60

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Solution

The fourth proportional to 915,418,981.80, 1,373,065,487.10 and 293,625,138.60 is: 440,417,504.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,418,981.80 : 1,373,065,487.10 = 293,625,138.60 : x
  2. Step 2: Convert to fraction form
    915,418,981.80/1,373,065,487.10 = 293,625,138.60/x
  3. Step 3: Cross multiply
    915,418,981.80x = 1,373,065,487.10 × 293,625,138.60
  4. Step 4: Simplify right side
    915,418,981.80x = 403,166,543,956,614,016
  5. Step 5: Solve for x
    x = 403,166,543,956,614,016/915,418,981.80
  6. Step 6: Final answer
    x = 440,417,504.96

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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.