Home / 1,990,848,279.60-2,986,272,419.40-747,276,339.60

Finding the Fourth Proportional to 1,990,848,279.60, 2,986,272,419.40 and 747,276,339.60

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Solution

The fourth proportional to 1,990,848,279.60, 2,986,272,419.40 and 747,276,339.60 is: 1,120,914,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,848,279.60 : 2,986,272,419.40 = 747,276,339.60 : x
  2. Step 2: Convert to fraction form
    1,990,848,279.60/2,986,272,419.40 = 747,276,339.60/x
  3. Step 3: Cross multiply
    1,990,848,279.60x = 2,986,272,419.40 × 747,276,339.60
  4. Step 4: Simplify right side
    1,990,848,279.60x = 2,231,570,722,617,668,096
  5. Step 5: Solve for x
    x = 2,231,570,722,617,668,096/1,990,848,279.60
  6. Step 6: Final answer
    x = 1,120,914,509.40

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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.