Home / 13,419,108.59-18,515,909.90-7,914,206.03

Finding the Fourth Proportional to 13,419,108.59, 18,515,909.90 and 7,914,206.03

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Solution

The fourth proportional to 13,419,108.59, 18,515,909.90 and 7,914,206.03 is: 10,920,153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,108.59 : 18,515,909.90 = 7,914,206.03 : x
  2. Step 2: Convert to fraction form
    13,419,108.59/18,515,909.90 = 7,914,206.03/x
  3. Step 3: Cross multiply
    13,419,108.59x = 18,515,909.90 × 7,914,206.03
  4. Step 4: Simplify right side
    13,419,108.59x = 146,538,725,688,937.16
  5. Step 5: Solve for x
    x = 146,538,725,688,937.16/13,419,108.59
  6. Step 6: Final answer
    x = 10,920,153.51

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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.