Home / 453,264,891.40-679,897,337.10-315,515,384.20

Finding the Fourth Proportional to 453,264,891.40, 679,897,337.10 and 315,515,384.20

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Solution

The fourth proportional to 453,264,891.40, 679,897,337.10 and 315,515,384.20 is: 473,273,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,264,891.40 : 679,897,337.10 = 315,515,384.20 : x
  2. Step 2: Convert to fraction form
    453,264,891.40/679,897,337.10 = 315,515,384.20/x
  3. Step 3: Cross multiply
    453,264,891.40x = 679,897,337.10 × 315,515,384.20
  4. Step 4: Simplify right side
    453,264,891.40x = 214,518,069,531,663,424
  5. Step 5: Solve for x
    x = 214,518,069,531,663,424/453,264,891.40
  6. Step 6: Final answer
    x = 473,273,076.30

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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.