Home / 658,172,232.40-987,258,348.60-221,327,730.40

Finding the Fourth Proportional to 658,172,232.40, 987,258,348.60 and 221,327,730.40

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Solution

The fourth proportional to 658,172,232.40, 987,258,348.60 and 221,327,730.40 is: 331,991,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,172,232.40 : 987,258,348.60 = 221,327,730.40 : x
  2. Step 2: Convert to fraction form
    658,172,232.40/987,258,348.60 = 221,327,730.40/x
  3. Step 3: Cross multiply
    658,172,232.40x = 987,258,348.60 × 221,327,730.40
  4. Step 4: Simplify right side
    658,172,232.40x = 218,507,649,614,090,016
  5. Step 5: Solve for x
    x = 218,507,649,614,090,016/658,172,232.40
  6. Step 6: Final answer
    x = 331,991,595.60

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Similar ratio
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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.