Home / 145,164,920.40-217,747,380.60-131,727,992.40

Finding the Fourth Proportional to 145,164,920.40, 217,747,380.60 and 131,727,992.40

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Solution

The fourth proportional to 145,164,920.40, 217,747,380.60 and 131,727,992.40 is: 197,591,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,164,920.40 : 217,747,380.60 = 131,727,992.40 : x
  2. Step 2: Convert to fraction form
    145,164,920.40/217,747,380.60 = 131,727,992.40/x
  3. Step 3: Cross multiply
    145,164,920.40x = 217,747,380.60 × 131,727,992.40
  4. Step 4: Simplify right side
    145,164,920.40x = 28,683,425,296,796,708
  5. Step 5: Solve for x
    x = 28,683,425,296,796,708/145,164,920.40
  6. Step 6: Final answer
    x = 197,591,988.60

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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.