Home / 207,988,835.40-311,899,272.30-71,604,016.20

Finding the Fourth Proportional to 207,988,835.40, 311,899,272.30 and 71,604,016.20

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Solution

The fourth proportional to 207,988,835.40, 311,899,272.30 and 71,604,016.20 is: 107,377,112.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,988,835.40 : 311,899,272.30 = 71,604,016.20 : x
  2. Step 2: Convert to fraction form
    207,988,835.40/311,899,272.30 = 71,604,016.20/x
  3. Step 3: Cross multiply
    207,988,835.40x = 311,899,272.30 × 71,604,016.20
  4. Step 4: Simplify right side
    207,988,835.40x = 22,333,240,546,537,412
  5. Step 5: Solve for x
    x = 22,333,240,546,537,412/207,988,835.40
  6. Step 6: Final answer
    x = 107,377,112.35

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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.