Home / 78,043,865.24-117,027,490.66-38,606,553.24

Finding the Fourth Proportional to 78,043,865.24, 117,027,490.66 and 38,606,553.24

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Solution

The fourth proportional to 78,043,865.24, 117,027,490.66 and 38,606,553.24 is: 57,890,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,043,865.24 : 117,027,490.66 = 38,606,553.24 : x
  2. Step 2: Convert to fraction form
    78,043,865.24/117,027,490.66 = 38,606,553.24/x
  3. Step 3: Cross multiply
    78,043,865.24x = 117,027,490.66 × 38,606,553.24
  4. Step 4: Simplify right side
    78,043,865.24x = 4,518,028,048,708,893
  5. Step 5: Solve for x
    x = 4,518,028,048,708,893/78,043,865.24
  6. Step 6: Final answer
    x = 57,890,880.15

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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.