Home / 538,088,021.70-807,132,032.55-492,171,519.30

Finding the Fourth Proportional to 538,088,021.70, 807,132,032.55 and 492,171,519.30

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Solution

The fourth proportional to 538,088,021.70, 807,132,032.55 and 492,171,519.30 is: 738,257,278.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,088,021.70 : 807,132,032.55 = 492,171,519.30 : x
  2. Step 2: Convert to fraction form
    538,088,021.70/807,132,032.55 = 492,171,519.30/x
  3. Step 3: Cross multiply
    538,088,021.70x = 807,132,032.55 × 492,171,519.30
  4. Step 4: Simplify right side
    538,088,021.70x = 397,247,398,735,830,528
  5. Step 5: Solve for x
    x = 397,247,398,735,830,528/538,088,021.70
  6. Step 6: Final answer
    x = 738,257,278.95

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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.