Home / 126,327,090.80-189,490,636.20-40,072,248.20

Finding the Fourth Proportional to 126,327,090.80, 189,490,636.20 and 40,072,248.20

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Solution

The fourth proportional to 126,327,090.80, 189,490,636.20 and 40,072,248.20 is: 60,108,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,327,090.80 : 189,490,636.20 = 40,072,248.20 : x
  2. Step 2: Convert to fraction form
    126,327,090.80/189,490,636.20 = 40,072,248.20/x
  3. Step 3: Cross multiply
    126,327,090.80x = 189,490,636.20 × 40,072,248.20
  4. Step 4: Simplify right side
    126,327,090.80x = 7,593,315,805,382,305
  5. Step 5: Solve for x
    x = 7,593,315,805,382,305/126,327,090.80
  6. Step 6: Final answer
    x = 60,108,372.30

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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.