Home / 399,480,402.76-599,220,604.12-112,266,066.76

Finding the Fourth Proportional to 399,480,402.76, 599,220,604.12 and 112,266,066.76

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Solution

The fourth proportional to 399,480,402.76, 599,220,604.12 and 112,266,066.76 is: 168,399,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,480,402.76 : 599,220,604.12 = 112,266,066.76 : x
  2. Step 2: Convert to fraction form
    399,480,402.76/599,220,604.12 = 112,266,066.76/x
  3. Step 3: Cross multiply
    399,480,402.76x = 599,220,604.12 × 112,266,066.76
  4. Step 4: Simplify right side
    399,480,402.76x = 67,272,140,346,103,456
  5. Step 5: Solve for x
    x = 67,272,140,346,103,456/399,480,402.76
  6. Step 6: Final answer
    x = 168,399,100.13

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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.