Home / 220,347,008.10-330,520,512.15-76,739,840.10

Finding the Fourth Proportional to 220,347,008.10, 330,520,512.15 and 76,739,840.10

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Solution

The fourth proportional to 220,347,008.10, 330,520,512.15 and 76,739,840.10 is: 115,109,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,347,008.10 : 330,520,512.15 = 76,739,840.10 : x
  2. Step 2: Convert to fraction form
    220,347,008.10/330,520,512.15 = 76,739,840.10/x
  3. Step 3: Cross multiply
    220,347,008.10x = 330,520,512.15 × 76,739,840.10
  4. Step 4: Simplify right side
    220,347,008.10x = 25,364,091,252,161,104
  5. Step 5: Solve for x
    x = 25,364,091,252,161,104/220,347,008.10
  6. Step 6: Final answer
    x = 115,109,760.15

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1.5x scale

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.