Home / 343,240,974.20-514,861,461.30-315,023,425.40

Finding the Fourth Proportional to 343,240,974.20, 514,861,461.30 and 315,023,425.40

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Solution

The fourth proportional to 343,240,974.20, 514,861,461.30 and 315,023,425.40 is: 472,535,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,240,974.20 : 514,861,461.30 = 315,023,425.40 : x
  2. Step 2: Convert to fraction form
    343,240,974.20/514,861,461.30 = 315,023,425.40/x
  3. Step 3: Cross multiply
    343,240,974.20x = 514,861,461.30 × 315,023,425.40
  4. Step 4: Simplify right side
    343,240,974.20x = 162,193,421,145,175,520
  5. Step 5: Solve for x
    x = 162,193,421,145,175,520/343,240,974.20
  6. Step 6: Final answer
    x = 472,535,138.10

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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.