Home / 51,387,986.64-70,919,906.32-28,187,597.60

Finding the Fourth Proportional to 51,387,986.64, 70,919,906.32 and 28,187,597.60

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Solution

The fourth proportional to 51,387,986.64, 70,919,906.32 and 28,187,597.60 is: 38,901,344.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387,986.64 : 70,919,906.32 = 28,187,597.60 : x
  2. Step 2: Convert to fraction form
    51,387,986.64/70,919,906.32 = 28,187,597.60/x
  3. Step 3: Cross multiply
    51,387,986.64x = 70,919,906.32 × 28,187,597.60
  4. Step 4: Simplify right side
    51,387,986.64x = 1,999,061,781,177,856.75
  5. Step 5: Solve for x
    x = 1,999,061,781,177,856.75/51,387,986.64
  6. Step 6: Final answer
    x = 38,901,344.69

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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.