Home / 74,675,986.20-112,005,684.90-61,189,291.80

Finding the Fourth Proportional to 74,675,986.20, 112,005,684.90 and 61,189,291.80

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Solution

The fourth proportional to 74,675,986.20, 112,005,684.90 and 61,189,291.80 is: 91,777,141.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,675,986.20 : 112,005,684.90 = 61,189,291.80 : x
  2. Step 2: Convert to fraction form
    74,675,986.20/112,005,684.90 = 61,189,291.80/x
  3. Step 3: Cross multiply
    74,675,986.20x = 112,005,684.90 × 61,189,291.80
  4. Step 4: Simplify right side
    74,675,986.20x = 6,853,548,536,604,954
  5. Step 5: Solve for x
    x = 6,853,548,536,604,954/74,675,986.20
  6. Step 6: Final answer
    x = 91,777,141.29

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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.