Home / 85,784,561.60-118,382,139.96-49,122,218.48

Finding the Fourth Proportional to 85,784,561.60, 118,382,139.96 and 49,122,218.48

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Solution

The fourth proportional to 85,784,561.60, 118,382,139.96 and 49,122,218.48 is: 67,788,343.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,784,561.60 : 118,382,139.96 = 49,122,218.48 : x
  2. Step 2: Convert to fraction form
    85,784,561.60/118,382,139.96 = 49,122,218.48/x
  3. Step 3: Cross multiply
    85,784,561.60x = 118,382,139.96 × 49,122,218.48
  4. Step 4: Simplify right side
    85,784,561.60x = 5,815,193,343,245,058
  5. Step 5: Solve for x
    x = 5,815,193,343,245,058/85,784,561.60
  6. Step 6: Final answer
    x = 67,788,343.67

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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.