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Finding the Fourth Proportional to 17,706,713.80, 26,560,070.70 and 12,891,814.60

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Solution

The fourth proportional to 17,706,713.80, 26,560,070.70 and 12,891,814.60 is: 19,337,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,706,713.80 : 26,560,070.70 = 12,891,814.60 : x
  2. Step 2: Convert to fraction form
    17,706,713.80/26,560,070.70 = 12,891,814.60/x
  3. Step 3: Cross multiply
    17,706,713.80x = 26,560,070.70 × 12,891,814.60
  4. Step 4: Simplify right side
    17,706,713.80x = 342,407,507,227,292.19
  5. Step 5: Solve for x
    x = 342,407,507,227,292.19/17,706,713.80
  6. Step 6: Final answer
    x = 19,337,721.90

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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.