Home / 78,282,947.11-108,024,166.93-45,245,336.08

Finding the Fourth Proportional to 78,282,947.11, 108,024,166.93 and 45,245,336.08

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Solution

The fourth proportional to 78,282,947.11, 108,024,166.93 and 45,245,336.08 is: 62,434,922.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,282,947.11 : 108,024,166.93 = 45,245,336.08 : x
  2. Step 2: Convert to fraction form
    78,282,947.11/108,024,166.93 = 45,245,336.08/x
  3. Step 3: Cross multiply
    78,282,947.11x = 108,024,166.93 × 45,245,336.08
  4. Step 4: Simplify right side
    78,282,947.11x = 4,887,589,737,126,698
  5. Step 5: Solve for x
    x = 4,887,589,737,126,698/78,282,947.11
  6. Step 6: Final answer
    x = 62,434,922.52

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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.