Home / 1,359,921,611.20-2,040,386,301.60-542,620,465.60

Finding the Fourth Proportional to 1,359,921,611.20, 2,040,386,301.60 and 542,620,465.60

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Solution

The fourth proportional to 1,359,921,611.20, 2,040,386,301.60 and 542,620,465.60 is: 814,131,752.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,921,611.20 : 2,040,386,301.60 = 542,620,465.60 : x
  2. Step 2: Convert to fraction form
    1,359,921,611.20/2,040,386,301.60 = 542,620,465.60/x
  3. Step 3: Cross multiply
    1,359,921,611.20x = 2,040,386,301.60 × 542,620,465.60
  4. Step 4: Simplify right side
    1,359,921,611.20x = 1,107,155,364,978,054,016
  5. Step 5: Solve for x
    x = 1,107,155,364,978,054,016/1,359,921,611.20
  6. Step 6: Final answer
    x = 814,131,752.79

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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.