Home / 139,472,002.20-209,208,003.30-79,005,826.20

Finding the Fourth Proportional to 139,472,002.20, 209,208,003.30 and 79,005,826.20

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Solution

The fourth proportional to 139,472,002.20, 209,208,003.30 and 79,005,826.20 is: 118,508,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,472,002.20 : 209,208,003.30 = 79,005,826.20 : x
  2. Step 2: Convert to fraction form
    139,472,002.20/209,208,003.30 = 79,005,826.20/x
  3. Step 3: Cross multiply
    139,472,002.20x = 209,208,003.30 × 79,005,826.20
  4. Step 4: Simplify right side
    139,472,002.20x = 16,528,651,148,368,828
  5. Step 5: Solve for x
    x = 16,528,651,148,368,828/139,472,002.20
  6. Step 6: Final answer
    x = 118,508,739.30

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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.