Home / 72,171,044.10-108,256,566.15-70,045,280.10

Finding the Fourth Proportional to 72,171,044.10, 108,256,566.15 and 70,045,280.10

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Solution

The fourth proportional to 72,171,044.10, 108,256,566.15 and 70,045,280.10 is: 105,067,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,044.10 : 108,256,566.15 = 70,045,280.10 : x
  2. Step 2: Convert to fraction form
    72,171,044.10/108,256,566.15 = 70,045,280.10/x
  3. Step 3: Cross multiply
    72,171,044.10x = 108,256,566.15 × 70,045,280.10
  4. Step 4: Simplify right side
    72,171,044.10x = 7,582,861,498,640,928
  5. Step 5: Solve for x
    x = 7,582,861,498,640,928/72,171,044.10
  6. Step 6: Final answer
    x = 105,067,920.15

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Double scale
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Similar ratio
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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.