Home / 498,506,837.90-747,091,855.52-387,975,973.30

Finding the Fourth Proportional to 498,506,837.90, 747,091,855.52 and 387,975,973.30

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Solution

The fourth proportional to 498,506,837.90, 747,091,855.52 and 387,975,973.30 is: 581,443,759.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,506,837.90 : 747,091,855.52 = 387,975,973.30 : x
  2. Step 2: Convert to fraction form
    498,506,837.90/747,091,855.52 = 387,975,973.30/x
  3. Step 3: Cross multiply
    498,506,837.90x = 747,091,855.52 × 387,975,973.30
  4. Step 4: Simplify right side
    498,506,837.90x = 289,853,689,789,875,008
  5. Step 5: Solve for x
    x = 289,853,689,789,875,008/498,506,837.90
  6. Step 6: Final answer
    x = 581,443,759.15

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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.