Home / 748,298,344.77-1,121,875,329.92-453,129,223.95

Finding the Fourth Proportional to 748,298,344.77, 1,121,875,329.92 and 453,129,223.95

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Solution

The fourth proportional to 748,298,344.77, 1,121,875,329.92 and 453,129,223.95 is: 679,347,350.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,298,344.77 : 1,121,875,329.92 = 453,129,223.95 : x
  2. Step 2: Convert to fraction form
    748,298,344.77/1,121,875,329.92 = 453,129,223.95/x
  3. Step 3: Cross multiply
    748,298,344.77x = 1,121,875,329.92 × 453,129,223.95
  4. Step 4: Simplify right side
    748,298,344.77x = 508,354,497,613,034,112
  5. Step 5: Solve for x
    x = 508,354,497,613,034,112/748,298,344.77
  6. Step 6: Final answer
    x = 679,347,350.11

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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.