Home / 1,278,150,067.60-1,917,225,101.40-727,152,038.80

Finding the Fourth Proportional to 1,278,150,067.60, 1,917,225,101.40 and 727,152,038.80

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Solution

The fourth proportional to 1,278,150,067.60, 1,917,225,101.40 and 727,152,038.80 is: 1,090,728,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,150,067.60 : 1,917,225,101.40 = 727,152,038.80 : x
  2. Step 2: Convert to fraction form
    1,278,150,067.60/1,917,225,101.40 = 727,152,038.80/x
  3. Step 3: Cross multiply
    1,278,150,067.60x = 1,917,225,101.40 × 727,152,038.80
  4. Step 4: Simplify right side
    1,278,150,067.60x = 1,394,114,141,321,546,752
  5. Step 5: Solve for x
    x = 1,394,114,141,321,546,752/1,278,150,067.60
  6. Step 6: Final answer
    x = 1,090,728,058.20

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Double scale
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Similar ratio
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1.5x scale

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.