Home / 144,229,917.60-199,037,979.36-78,150,398.40

Finding the Fourth Proportional to 144,229,917.60, 199,037,979.36 and 78,150,398.40

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Solution

The fourth proportional to 144,229,917.60, 199,037,979.36 and 78,150,398.40 is: 107,847,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,229,917.60 : 199,037,979.36 = 78,150,398.40 : x
  2. Step 2: Convert to fraction form
    144,229,917.60/199,037,979.36 = 78,150,398.40/x
  3. Step 3: Cross multiply
    144,229,917.60x = 199,037,979.36 × 78,150,398.40
  4. Step 4: Simplify right side
    144,229,917.60x = 15,554,897,383,714,980
  5. Step 5: Solve for x
    x = 15,554,897,383,714,980/144,229,917.60
  6. Step 6: Final answer
    x = 107,847,925.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.