Home / 78,391,385.28-108,186,164.64-47,030,610.24

Finding the Fourth Proportional to 78,391,385.28, 108,186,164.64 and 47,030,610.24

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Solution

The fourth proportional to 78,391,385.28, 108,186,164.64 and 47,030,610.24 is: 64,905,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,391,385.28 : 108,186,164.64 = 47,030,610.24 : x
  2. Step 2: Convert to fraction form
    78,391,385.28/108,186,164.64 = 47,030,610.24/x
  3. Step 3: Cross multiply
    78,391,385.28x = 108,186,164.64 × 47,030,610.24
  4. Step 4: Simplify right side
    78,391,385.28x = 5,088,061,342,544,310
  5. Step 5: Solve for x
    x = 5,088,061,342,544,310/78,391,385.28
  6. Step 6: Final answer
    x = 64,905,873.58

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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.