Home / 144,854,999.80-217,282,499.70-128,982,628.60

Finding the Fourth Proportional to 144,854,999.80, 217,282,499.70 and 128,982,628.60

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Solution

The fourth proportional to 144,854,999.80, 217,282,499.70 and 128,982,628.60 is: 193,473,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,854,999.80 : 217,282,499.70 = 128,982,628.60 : x
  2. Step 2: Convert to fraction form
    144,854,999.80/217,282,499.70 = 128,982,628.60/x
  3. Step 3: Cross multiply
    144,854,999.80x = 217,282,499.70 × 128,982,628.60
  4. Step 4: Simplify right side
    144,854,999.80x = 28,025,667,960,084,708
  5. Step 5: Solve for x
    x = 28,025,667,960,084,708/144,854,999.80
  6. Step 6: Final answer
    x = 193,473,942.90

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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.