Home / 126,786,346.80-190,179,520.20-118,220,305.20

Finding the Fourth Proportional to 126,786,346.80, 190,179,520.20 and 118,220,305.20

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Solution

The fourth proportional to 126,786,346.80, 190,179,520.20 and 118,220,305.20 is: 177,330,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,786,346.80 : 190,179,520.20 = 118,220,305.20 : x
  2. Step 2: Convert to fraction form
    126,786,346.80/190,179,520.20 = 118,220,305.20/x
  3. Step 3: Cross multiply
    126,786,346.80x = 190,179,520.20 × 118,220,305.20
  4. Step 4: Simplify right side
    126,786,346.80x = 22,483,080,920,833,564
  5. Step 5: Solve for x
    x = 22,483,080,920,833,564/126,786,346.80
  6. Step 6: Final answer
    x = 177,330,457.80

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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.