Home / 1,399,681,419.60-2,099,522,129.40-1,391,619,262.80

Finding the Fourth Proportional to 1,399,681,419.60, 2,099,522,129.40 and 1,391,619,262.80

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Solution

The fourth proportional to 1,399,681,419.60, 2,099,522,129.40 and 1,391,619,262.80 is: 2,087,428,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,681,419.60 : 2,099,522,129.40 = 1,391,619,262.80 : x
  2. Step 2: Convert to fraction form
    1,399,681,419.60/2,099,522,129.40 = 1,391,619,262.80/x
  3. Step 3: Cross multiply
    1,399,681,419.60x = 2,099,522,129.40 × 1,391,619,262.80
  4. Step 4: Simplify right side
    1,399,681,419.60x = 2,921,735,437,947,914,240
  5. Step 5: Solve for x
    x = 2,921,735,437,947,914,240/1,399,681,419.60
  6. Step 6: Final answer
    x = 2,087,428,894.20

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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.