Home / 139,979,564.20-209,969,346.30-119,572,229.80

Finding the Fourth Proportional to 139,979,564.20, 209,969,346.30 and 119,572,229.80

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Solution

The fourth proportional to 139,979,564.20, 209,969,346.30 and 119,572,229.80 is: 179,358,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,979,564.20 : 209,969,346.30 = 119,572,229.80 : x
  2. Step 2: Convert to fraction form
    139,979,564.20/209,969,346.30 = 119,572,229.80/x
  3. Step 3: Cross multiply
    139,979,564.20x = 209,969,346.30 × 119,572,229.80
  4. Step 4: Simplify right side
    139,979,564.20x = 25,106,502,926,739,380
  5. Step 5: Solve for x
    x = 25,106,502,926,739,380/139,979,564.20
  6. Step 6: Final answer
    x = 179,358,344.70

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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.