Home / 399,480,402.78-599,220,604.14-112,266,066.78

Finding the Fourth Proportional to 399,480,402.78, 599,220,604.14 and 112,266,066.78

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Solution

The fourth proportional to 399,480,402.78, 599,220,604.14 and 112,266,066.78 is: 168,399,100.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,480,402.78 : 599,220,604.14 = 112,266,066.78 : x
  2. Step 2: Convert to fraction form
    399,480,402.78/599,220,604.14 = 112,266,066.78/x
  3. Step 3: Cross multiply
    399,480,402.78x = 599,220,604.14 × 112,266,066.78
  4. Step 4: Simplify right side
    399,480,402.78x = 67,272,140,360,333,184
  5. Step 5: Solve for x
    x = 67,272,140,360,333,184/399,480,402.78
  6. Step 6: Final answer
    x = 168,399,100.16

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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.