Home / 76,663,824.60-114,995,736.90-71,121,091.80

Finding the Fourth Proportional to 76,663,824.60, 114,995,736.90 and 71,121,091.80

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Solution

The fourth proportional to 76,663,824.60, 114,995,736.90 and 71,121,091.80 is: 106,681,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,663,824.60 : 114,995,736.90 = 71,121,091.80 : x
  2. Step 2: Convert to fraction form
    76,663,824.60/114,995,736.90 = 71,121,091.80/x
  3. Step 3: Cross multiply
    76,663,824.60x = 114,995,736.90 × 71,121,091.80
  4. Step 4: Simplify right side
    76,663,824.60x = 8,178,622,360,673,548
  5. Step 5: Solve for x
    x = 8,178,622,360,673,548/76,663,824.60
  6. Step 6: Final answer
    x = 106,681,637.70

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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.