Home / 498,506,836.90-747,091,854.02-387,975,972.30

Finding the Fourth Proportional to 498,506,836.90, 747,091,854.02 and 387,975,972.30

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Solution

The fourth proportional to 498,506,836.90, 747,091,854.02 and 387,975,972.30 is: 581,443,757.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,506,836.90 : 747,091,854.02 = 387,975,972.30 : x
  2. Step 2: Convert to fraction form
    498,506,836.90/747,091,854.02 = 387,975,972.30/x
  3. Step 3: Cross multiply
    498,506,836.90x = 747,091,854.02 × 387,975,972.30
  4. Step 4: Simplify right side
    498,506,836.90x = 289,853,688,460,819,136
  5. Step 5: Solve for x
    x = 289,853,688,460,819,136/498,506,836.90
  6. Step 6: Final answer
    x = 581,443,757.65

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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.