Home / 78,418,601.20-117,627,901.80-27,283,625.20

Finding the Fourth Proportional to 78,418,601.20, 117,627,901.80 and 27,283,625.20

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Solution

The fourth proportional to 78,418,601.20, 117,627,901.80 and 27,283,625.20 is: 40,925,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,418,601.20 : 117,627,901.80 = 27,283,625.20 : x
  2. Step 2: Convert to fraction form
    78,418,601.20/117,627,901.80 = 27,283,625.20/x
  3. Step 3: Cross multiply
    78,418,601.20x = 117,627,901.80 × 27,283,625.20
  4. Step 4: Simplify right side
    78,418,601.20x = 3,209,315,585,773,605
  5. Step 5: Solve for x
    x = 3,209,315,585,773,605/78,418,601.20
  6. Step 6: Final answer
    x = 40,925,437.80

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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.