Home / 79,390,187.20-119,085,280.80-39,079,403.20

Finding the Fourth Proportional to 79,390,187.20, 119,085,280.80 and 39,079,403.20

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Solution

The fourth proportional to 79,390,187.20, 119,085,280.80 and 39,079,403.20 is: 58,619,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,390,187.20 : 119,085,280.80 = 39,079,403.20 : x
  2. Step 2: Convert to fraction form
    79,390,187.20/119,085,280.80 = 39,079,403.20/x
  3. Step 3: Cross multiply
    79,390,187.20x = 119,085,280.80 × 39,079,403.20
  4. Step 4: Simplify right side
    79,390,187.20x = 4,653,781,703,568,419
  5. Step 5: Solve for x
    x = 4,653,781,703,568,419/79,390,187.20
  6. Step 6: Final answer
    x = 58,619,104.80

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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.