Home / 79,970,406.48-119,955,609.72-19,386,132.48

Finding the Fourth Proportional to 79,970,406.48, 119,955,609.72 and 19,386,132.48

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Solution

The fourth proportional to 79,970,406.48, 119,955,609.72 and 19,386,132.48 is: 29,079,198.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,970,406.48 : 119,955,609.72 = 19,386,132.48 : x
  2. Step 2: Convert to fraction form
    79,970,406.48/119,955,609.72 = 19,386,132.48/x
  3. Step 3: Cross multiply
    79,970,406.48x = 119,955,609.72 × 19,386,132.48
  4. Step 4: Simplify right side
    79,970,406.48x = 2,325,475,341,751,095.50
  5. Step 5: Solve for x
    x = 2,325,475,341,751,095.50/79,970,406.48
  6. Step 6: Final answer
    x = 29,079,198.72

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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.