Home / 72,845,999.10-109,266,471.45-18,259,062.30

Finding the Fourth Proportional to 72,845,999.10, 109,266,471.45 and 18,259,062.30

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Solution

The fourth proportional to 72,845,999.10, 109,266,471.45 and 18,259,062.30 is: 27,387,960.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,845,999.10 : 109,266,471.45 = 18,259,062.30 : x
  2. Step 2: Convert to fraction form
    72,845,999.10/109,266,471.45 = 18,259,062.30/x
  3. Step 3: Cross multiply
    72,845,999.10x = 109,266,471.45 × 18,259,062.30
  4. Step 4: Simplify right side
    72,845,999.10x = 1,995,103,309,506,721.50
  5. Step 5: Solve for x
    x = 1,995,103,309,506,721.50/72,845,999.10
  6. Step 6: Final answer
    x = 27,387,960.00

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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.