Home / 19,116,002.40-28,626,764.40-12,691,471.20

Finding the Fourth Proportional to 19,116,002.40, 28,626,764.40 and 12,691,471.20

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Solution

The fourth proportional to 19,116,002.40, 28,626,764.40 and 12,691,471.20 is: 19,005,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116,002.40 : 28,626,764.40 = 12,691,471.20 : x
  2. Step 2: Convert to fraction form
    19,116,002.40/28,626,764.40 = 12,691,471.20/x
  3. Step 3: Cross multiply
    19,116,002.40x = 28,626,764.40 × 12,691,471.20
  4. Step 4: Simplify right side
    19,116,002.40x = 363,315,755,931,785.25
  5. Step 5: Solve for x
    x = 363,315,755,931,785.25/19,116,002.40
  6. Step 6: Final answer
    x = 19,005,843.81

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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.