Home / 84,499,878.44-126,734,834.86-38,430,956.72

Finding the Fourth Proportional to 84,499,878.44, 126,734,834.86 and 38,430,956.72

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Solution

The fourth proportional to 84,499,878.44, 126,734,834.86 and 38,430,956.72 is: 57,639,620.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,499,878.44 : 126,734,834.86 = 38,430,956.72 : x
  2. Step 2: Convert to fraction form
    84,499,878.44/126,734,834.86 = 38,430,956.72/x
  3. Step 3: Cross multiply
    84,499,878.44x = 126,734,834.86 × 38,430,956.72
  4. Step 4: Simplify right side
    84,499,878.44x = 4,870,540,953,641,767
  5. Step 5: Solve for x
    x = 4,870,540,953,641,767/84,499,878.44
  6. Step 6: Final answer
    x = 57,639,620.83

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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.