Home / 498,960,425.40-748,440,638.10-207,730,757.40

Finding the Fourth Proportional to 498,960,425.40, 748,440,638.10 and 207,730,757.40

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Solution

The fourth proportional to 498,960,425.40, 748,440,638.10 and 207,730,757.40 is: 311,596,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,960,425.40 : 748,440,638.10 = 207,730,757.40 : x
  2. Step 2: Convert to fraction form
    498,960,425.40/748,440,638.10 = 207,730,757.40/x
  3. Step 3: Cross multiply
    498,960,425.40x = 748,440,638.10 × 207,730,757.40
  4. Step 4: Simplify right side
    498,960,425.40x = 155,474,140,621,452,320
  5. Step 5: Solve for x
    x = 155,474,140,621,452,320/498,960,425.40
  6. Step 6: Final answer
    x = 311,596,136.10

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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.