Home / 78,345,248.85-108,002,496.21-54,750,531.45

Finding the Fourth Proportional to 78,345,248.85, 108,002,496.21 and 54,750,531.45

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Solution

The fourth proportional to 78,345,248.85, 108,002,496.21 and 54,750,531.45 is: 75,476,102.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,345,248.85 : 108,002,496.21 = 54,750,531.45 : x
  2. Step 2: Convert to fraction form
    78,345,248.85/108,002,496.21 = 54,750,531.45/x
  3. Step 3: Cross multiply
    78,345,248.85x = 108,002,496.21 × 54,750,531.45
  4. Step 4: Simplify right side
    78,345,248.85x = 5,913,194,065,424,111
  5. Step 5: Solve for x
    x = 5,913,194,065,424,111/78,345,248.85
  6. Step 6: Final answer
    x = 75,476,102.92

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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.