Home / 126,366,917.80-189,550,376.70-103,408,666.60

Finding the Fourth Proportional to 126,366,917.80, 189,550,376.70 and 103,408,666.60

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Solution

The fourth proportional to 126,366,917.80, 189,550,376.70 and 103,408,666.60 is: 155,112,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,366,917.80 : 189,550,376.70 = 103,408,666.60 : x
  2. Step 2: Convert to fraction form
    126,366,917.80/189,550,376.70 = 103,408,666.60/x
  3. Step 3: Cross multiply
    126,366,917.80x = 189,550,376.70 × 103,408,666.60
  4. Step 4: Simplify right side
    126,366,917.80x = 19,601,151,708,074,704
  5. Step 5: Solve for x
    x = 19,601,151,708,074,704/126,366,917.80
  6. Step 6: Final answer
    x = 155,112,999.90

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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.