Home / 12,121,460,098.20-18,182,190,147.30-7,985,573,659.80

Finding the Fourth Proportional to 12,121,460,098.20, 18,182,190,147.30 and 7,985,573,659.80

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Solution

The fourth proportional to 12,121,460,098.20, 18,182,190,147.30 and 7,985,573,659.80 is: 11,978,360,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121,460,098.20 : 18,182,190,147.30 = 7,985,573,659.80 : x
  2. Step 2: Convert to fraction form
    12,121,460,098.20/18,182,190,147.30 = 7,985,573,659.80/x
  3. Step 3: Cross multiply
    12,121,460,098.20x = 18,182,190,147.30 × 7,985,573,659.80
  4. Step 4: Simplify right side
    12,121,460,098.20x = 145,195,218,717,753,966,592
  5. Step 5: Solve for x
    x = 145,195,218,717,753,966,592/12,121,460,098.20
  6. Step 6: Final answer
    x = 11,978,360,489.70

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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.