Home / 13,290,687.80-19,936,031.70-7,244,070.20

Finding the Fourth Proportional to 13,290,687.80, 19,936,031.70 and 7,244,070.20

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Solution

The fourth proportional to 13,290,687.80, 19,936,031.70 and 7,244,070.20 is: 10,866,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,687.80 : 19,936,031.70 = 7,244,070.20 : x
  2. Step 2: Convert to fraction form
    13,290,687.80/19,936,031.70 = 7,244,070.20/x
  3. Step 3: Cross multiply
    13,290,687.80x = 19,936,031.70 × 7,244,070.20
  4. Step 4: Simplify right side
    13,290,687.80x = 144,418,013,144,225.34
  5. Step 5: Solve for x
    x = 144,418,013,144,225.34/13,290,687.80
  6. Step 6: Final answer
    x = 10,866,105.30

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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.