Home / 225,142,647.08-310,700,026.02-129,720,418.79

Finding the Fourth Proportional to 225,142,647.08, 310,700,026.02 and 129,720,418.79

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Solution

The fourth proportional to 225,142,647.08, 310,700,026.02 and 129,720,418.79 is: 179,016,006.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,142,647.08 : 310,700,026.02 = 129,720,418.79 : x
  2. Step 2: Convert to fraction form
    225,142,647.08/310,700,026.02 = 129,720,418.79/x
  3. Step 3: Cross multiply
    225,142,647.08x = 310,700,026.02 × 129,720,418.79
  4. Step 4: Simplify right side
    225,142,647.08x = 40,304,137,491,824,792
  5. Step 5: Solve for x
    x = 40,304,137,491,824,792/225,142,647.08
  6. Step 6: Final answer
    x = 179,016,006.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.