Home / 438,220,948.80-657,331,423.20-310,818,964.80

Finding the Fourth Proportional to 438,220,948.80, 657,331,423.20 and 310,818,964.80

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Solution

The fourth proportional to 438,220,948.80, 657,331,423.20 and 310,818,964.80 is: 466,228,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,220,948.80 : 657,331,423.20 = 310,818,964.80 : x
  2. Step 2: Convert to fraction form
    438,220,948.80/657,331,423.20 = 310,818,964.80/x
  3. Step 3: Cross multiply
    438,220,948.80x = 657,331,423.20 × 310,818,964.80
  4. Step 4: Simplify right side
    438,220,948.80x = 204,311,072,489,534,720
  5. Step 5: Solve for x
    x = 204,311,072,489,534,720/438,220,948.80
  6. Step 6: Final answer
    x = 466,228,447.20

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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.