Home / 84,150,400.72-126,303,194.13-42,680,382.04

Finding the Fourth Proportional to 84,150,400.72, 126,303,194.13 and 42,680,382.04

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Solution

The fourth proportional to 84,150,400.72, 126,303,194.13 and 42,680,382.04 is: 64,059,927.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,150,400.72 : 126,303,194.13 = 42,680,382.04 : x
  2. Step 2: Convert to fraction form
    84,150,400.72/126,303,194.13 = 42,680,382.04/x
  3. Step 3: Cross multiply
    84,150,400.72x = 126,303,194.13 × 42,680,382.04
  4. Step 4: Simplify right side
    84,150,400.72x = 5,390,668,578,340,685
  5. Step 5: Solve for x
    x = 5,390,668,578,340,685/84,150,400.72
  6. Step 6: Final answer
    x = 64,059,927.61

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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.