Home / 156,019,218.16-215,202,849.72-100,335,040.24

Finding the Fourth Proportional to 156,019,218.16, 215,202,849.72 and 100,335,040.24

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Solution

The fourth proportional to 156,019,218.16, 215,202,849.72 and 100,335,040.24 is: 138,395,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,019,218.16 : 215,202,849.72 = 100,335,040.24 : x
  2. Step 2: Convert to fraction form
    156,019,218.16/215,202,849.72 = 100,335,040.24/x
  3. Step 3: Cross multiply
    156,019,218.16x = 215,202,849.72 × 100,335,040.24
  4. Step 4: Simplify right side
    156,019,218.16x = 21,592,386,586,418,872
  5. Step 5: Solve for x
    x = 21,592,386,586,418,872/156,019,218.16
  6. Step 6: Final answer
    x = 138,395,685.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.