Home / 43,419,643.20-65,138,911.20-13,126,715.20

Finding the Fourth Proportional to 43,419,643.20, 65,138,911.20 and 13,126,715.20

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Solution

The fourth proportional to 43,419,643.20, 65,138,911.20 and 13,126,715.20 is: 19,692,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,419,643.20 : 65,138,911.20 = 13,126,715.20 : x
  2. Step 2: Convert to fraction form
    43,419,643.20/65,138,911.20 = 13,126,715.20/x
  3. Step 3: Cross multiply
    43,419,643.20x = 65,138,911.20 × 13,126,715.20
  4. Step 4: Simplify right side
    43,419,643.20x = 855,059,935,760,490.25
  5. Step 5: Solve for x
    x = 855,059,935,760,490.25/43,419,643.20
  6. Step 6: Final answer
    x = 19,692,928.65

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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.