Home / 126,189,201.60-189,283,802.40-45,381,009.60

Finding the Fourth Proportional to 126,189,201.60, 189,283,802.40 and 45,381,009.60

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Solution

The fourth proportional to 126,189,201.60, 189,283,802.40 and 45,381,009.60 is: 68,071,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,189,201.60 : 189,283,802.40 = 45,381,009.60 : x
  2. Step 2: Convert to fraction form
    126,189,201.60/189,283,802.40 = 45,381,009.60/x
  3. Step 3: Cross multiply
    126,189,201.60x = 189,283,802.40 × 45,381,009.60
  4. Step 4: Simplify right side
    126,189,201.60x = 8,589,890,053,838,904
  5. Step 5: Solve for x
    x = 8,589,890,053,838,904/126,189,201.60
  6. Step 6: Final answer
    x = 68,071,514.40

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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.