Home / 65,385,886.88-90,214,566.18-45,517,385.54

Finding the Fourth Proportional to 65,385,886.88, 90,214,566.18 and 45,517,385.54

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Solution

The fourth proportional to 65,385,886.88, 90,214,566.18 and 45,517,385.54 is: 62,801,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,385,886.88 : 90,214,566.18 = 45,517,385.54 : x
  2. Step 2: Convert to fraction form
    65,385,886.88/90,214,566.18 = 45,517,385.54/x
  3. Step 3: Cross multiply
    65,385,886.88x = 90,214,566.18 × 45,517,385.54
  4. Step 4: Simplify right side
    65,385,886.88x = 4,106,331,189,687,832
  5. Step 5: Solve for x
    x = 4,106,331,189,687,832/65,385,886.88
  6. Step 6: Final answer
    x = 62,801,491.05

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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.