Home / 19,115,764.40-28,626,407.40-12,691,233.20

Finding the Fourth Proportional to 19,115,764.40, 28,626,407.40 and 12,691,233.20

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Solution

The fourth proportional to 19,115,764.40, 28,626,407.40 and 12,691,233.20 is: 19,005,487.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115,764.40 : 28,626,407.40 = 12,691,233.20 : x
  2. Step 2: Convert to fraction form
    19,115,764.40/28,626,407.40 = 12,691,233.20/x
  3. Step 3: Cross multiply
    19,115,764.40x = 28,626,407.40 × 12,691,233.20
  4. Step 4: Simplify right side
    19,115,764.40x = 363,304,411,991,605.62
  5. Step 5: Solve for x
    x = 363,304,411,991,605.62/19,115,764.40
  6. Step 6: Final answer
    x = 19,005,487.01

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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.