Home / 19,919,687.40-29,893,527.90-12,748,660.20

Finding the Fourth Proportional to 19,919,687.40, 29,893,527.90 and 12,748,660.20

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Solution

The fourth proportional to 19,919,687.40, 29,893,527.90 and 12,748,660.20 is: 19,131,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919,687.40 : 29,893,527.90 = 12,748,660.20 : x
  2. Step 2: Convert to fraction form
    19,919,687.40/29,893,527.90 = 12,748,660.20/x
  3. Step 3: Cross multiply
    19,919,687.40x = 29,893,527.90 × 12,748,660.20
  4. Step 4: Simplify right side
    19,919,687.40x = 381,102,429,376,319.56
  5. Step 5: Solve for x
    x = 381,102,429,376,319.56/19,919,687.40
  6. Step 6: Final answer
    x = 19,131,948.29

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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.