Home / 1,279,643,430.60-1,919,465,145.90-1,178,866,470.60

Finding the Fourth Proportional to 1,279,643,430.60, 1,919,465,145.90 and 1,178,866,470.60

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Solution

The fourth proportional to 1,279,643,430.60, 1,919,465,145.90 and 1,178,866,470.60 is: 1,768,299,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,643,430.60 : 1,919,465,145.90 = 1,178,866,470.60 : x
  2. Step 2: Convert to fraction form
    1,279,643,430.60/1,919,465,145.90 = 1,178,866,470.60/x
  3. Step 3: Cross multiply
    1,279,643,430.60x = 1,919,465,145.90 × 1,178,866,470.60
  4. Step 4: Simplify right side
    1,279,643,430.60x = 2,262,793,101,986,846,976
  5. Step 5: Solve for x
    x = 2,262,793,101,986,846,976/1,279,643,430.60
  6. Step 6: Final answer
    x = 1,768,299,705.90

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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.