Home / 151,939,731.36-209,676,908.16-82,325,167.20

Finding the Fourth Proportional to 151,939,731.36, 209,676,908.16 and 82,325,167.20

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Solution

The fourth proportional to 151,939,731.36, 209,676,908.16 and 82,325,167.20 is: 113,608,773.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,939,731.36 : 209,676,908.16 = 82,325,167.20 : x
  2. Step 2: Convert to fraction form
    151,939,731.36/209,676,908.16 = 82,325,167.20/x
  3. Step 3: Cross multiply
    151,939,731.36x = 209,676,908.16 × 82,325,167.20
  4. Step 4: Simplify right side
    151,939,731.36x = 17,261,686,522,251,044
  5. Step 5: Solve for x
    x = 17,261,686,522,251,044/151,939,731.36
  6. Step 6: Final answer
    x = 113,608,773.48

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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.