Home / 462,055,658.50-637,856,681.17-309,554,763.08

Finding the Fourth Proportional to 462,055,658.50, 637,856,681.17 and 309,554,763.08

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Solution

The fourth proportional to 462,055,658.50, 637,856,681.17 and 309,554,763.08 is: 427,332,876.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,055,658.50 : 637,856,681.17 = 309,554,763.08 : x
  2. Step 2: Convert to fraction form
    462,055,658.50/637,856,681.17 = 309,554,763.08/x
  3. Step 3: Cross multiply
    462,055,658.50x = 637,856,681.17 × 309,554,763.08
  4. Step 4: Simplify right side
    462,055,658.50x = 197,451,573,818,574,432
  5. Step 5: Solve for x
    x = 197,451,573,818,574,432/462,055,658.50
  6. Step 6: Final answer
    x = 427,332,876.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.