Home / 56,919,279.22-78,548,782.16-30,813,734.75

Finding the Fourth Proportional to 56,919,279.22, 78,548,782.16 and 30,813,734.75

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Solution

The fourth proportional to 56,919,279.22, 78,548,782.16 and 30,813,734.75 is: 42,523,049.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919,279.22 : 78,548,782.16 = 30,813,734.75 : x
  2. Step 2: Convert to fraction form
    56,919,279.22/78,548,782.16 = 30,813,734.75/x
  3. Step 3: Cross multiply
    56,919,279.22x = 78,548,782.16 × 30,813,734.75
  4. Step 4: Simplify right side
    56,919,279.22x = 2,420,381,338,098,062.50
  5. Step 5: Solve for x
    x = 2,420,381,338,098,062.50/56,919,279.22
  6. Step 6: Final answer
    x = 42,523,049.68

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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.