Home / 126,111,620.60-189,167,430.90-68,581,662.20

Finding the Fourth Proportional to 126,111,620.60, 189,167,430.90 and 68,581,662.20

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Solution

The fourth proportional to 126,111,620.60, 189,167,430.90 and 68,581,662.20 is: 102,872,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,111,620.60 : 189,167,430.90 = 68,581,662.20 : x
  2. Step 2: Convert to fraction form
    126,111,620.60/189,167,430.90 = 68,581,662.20/x
  3. Step 3: Cross multiply
    126,111,620.60x = 189,167,430.90 × 68,581,662.20
  4. Step 4: Simplify right side
    126,111,620.60x = 12,973,416,845,225,642
  5. Step 5: Solve for x
    x = 12,973,416,845,225,642/126,111,620.60
  6. Step 6: Final answer
    x = 102,872,493.30

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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.