Home / 498,508,191.36-747,093,872.52-387,977,320.80

Finding the Fourth Proportional to 498,508,191.36, 747,093,872.52 and 387,977,320.80

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Solution

The fourth proportional to 498,508,191.36, 747,093,872.52 and 387,977,320.80 is: 581,445,769.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,508,191.36 : 747,093,872.52 = 387,977,320.80 : x
  2. Step 2: Convert to fraction form
    498,508,191.36/747,093,872.52 = 387,977,320.80/x
  3. Step 3: Cross multiply
    498,508,191.36x = 747,093,872.52 × 387,977,320.80
  4. Step 4: Simplify right side
    498,508,191.36x = 289,855,479,046,406,336
  5. Step 5: Solve for x
    x = 289,855,479,046,406,336/498,508,191.36
  6. Step 6: Final answer
    x = 581,445,769.74

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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.