Home / 12,914,818.75-17,820,897.09-7,407,909.01

Finding the Fourth Proportional to 12,914,818.75, 17,820,897.09 and 7,407,909.01

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Solution

The fourth proportional to 12,914,818.75, 17,820,897.09 and 7,407,909.01 is: 10,222,023.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914,818.75 : 17,820,897.09 = 7,407,909.01 : x
  2. Step 2: Convert to fraction form
    12,914,818.75/17,820,897.09 = 7,407,909.01/x
  3. Step 3: Cross multiply
    12,914,818.75x = 17,820,897.09 × 7,407,909.01
  4. Step 4: Simplify right side
    12,914,818.75x = 132,015,584,119,293.78
  5. Step 5: Solve for x
    x = 132,015,584,119,293.78/12,914,818.75
  6. Step 6: Final answer
    x = 10,222,023.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.