Home / 113,319,964.20-169,979,946.30-72,505,295.40

Finding the Fourth Proportional to 113,319,964.20, 169,979,946.30 and 72,505,295.40

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Solution

The fourth proportional to 113,319,964.20, 169,979,946.30 and 72,505,295.40 is: 108,757,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,319,964.20 : 169,979,946.30 = 72,505,295.40 : x
  2. Step 2: Convert to fraction form
    113,319,964.20/169,979,946.30 = 72,505,295.40/x
  3. Step 3: Cross multiply
    113,319,964.20x = 169,979,946.30 × 72,505,295.40
  4. Step 4: Simplify right side
    113,319,964.20x = 12,324,446,218,557,638
  5. Step 5: Solve for x
    x = 12,324,446,218,557,638/113,319,964.20
  6. Step 6: Final answer
    x = 108,757,943.10

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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.