Home / 78,282,969.11-108,024,197.21-45,245,358.07

Finding the Fourth Proportional to 78,282,969.11, 108,024,197.21 and 45,245,358.07

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Solution

The fourth proportional to 78,282,969.11, 108,024,197.21 and 45,245,358.07 is: 62,434,952.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,282,969.11 : 108,024,197.21 = 45,245,358.07 : x
  2. Step 2: Convert to fraction form
    78,282,969.11/108,024,197.21 = 45,245,358.07/x
  3. Step 3: Cross multiply
    78,282,969.11x = 108,024,197.21 × 45,245,358.07
  4. Step 4: Simplify right side
    78,282,969.11x = 4,887,593,482,918,407
  5. Step 5: Solve for x
    x = 4,887,593,482,918,407/78,282,969.11
  6. Step 6: Final answer
    x = 62,434,952.82

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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.