Home / 126,014,948.80-189,022,423.20-115,244,411.20

Finding the Fourth Proportional to 126,014,948.80, 189,022,423.20 and 115,244,411.20

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Solution

The fourth proportional to 126,014,948.80, 189,022,423.20 and 115,244,411.20 is: 172,866,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,014,948.80 : 189,022,423.20 = 115,244,411.20 : x
  2. Step 2: Convert to fraction form
    126,014,948.80/189,022,423.20 = 115,244,411.20/x
  3. Step 3: Cross multiply
    126,014,948.80x = 189,022,423.20 × 115,244,411.20
  4. Step 4: Simplify right side
    126,014,948.80x = 21,783,777,865,281,220
  5. Step 5: Solve for x
    x = 21,783,777,865,281,220/126,014,948.80
  6. Step 6: Final answer
    x = 172,866,616.80

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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.