Home / 126,580,420.80-189,366,746.40-109,728,273.60

Finding the Fourth Proportional to 126,580,420.80, 189,366,746.40 and 109,728,273.60

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Solution

The fourth proportional to 126,580,420.80, 189,366,746.40 and 109,728,273.60 is: 164,155,609.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,580,420.80 : 189,366,746.40 = 109,728,273.60 : x
  2. Step 2: Convert to fraction form
    126,580,420.80/189,366,746.40 = 109,728,273.60/x
  3. Step 3: Cross multiply
    126,580,420.80x = 189,366,746.40 × 109,728,273.60
  4. Step 4: Simplify right side
    126,580,420.80x = 20,778,886,159,721,016
  5. Step 5: Solve for x
    x = 20,778,886,159,721,016/126,580,420.80
  6. Step 6: Final answer
    x = 164,155,609.76

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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.