Home / 218,799,240.85-301,939,399.54-119,679,121.20

Finding the Fourth Proportional to 218,799,240.85, 301,939,399.54 and 119,679,121.20

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Solution

The fourth proportional to 218,799,240.85, 301,939,399.54 and 119,679,121.20 is: 165,155,243.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,799,240.85 : 301,939,399.54 = 119,679,121.20 : x
  2. Step 2: Convert to fraction form
    218,799,240.85/301,939,399.54 = 119,679,121.20/x
  3. Step 3: Cross multiply
    218,799,240.85x = 301,939,399.54 × 119,679,121.20
  4. Step 4: Simplify right side
    218,799,240.85x = 36,135,841,992,602,888
  5. Step 5: Solve for x
    x = 36,135,841,992,602,888/218,799,240.85
  6. Step 6: Final answer
    x = 165,155,243.92

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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.