Home / 145,597,693.60-218,113,105.20-80,785,511.20

Finding the Fourth Proportional to 145,597,693.60, 218,113,105.20 and 80,785,511.20

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Solution

The fourth proportional to 145,597,693.60, 218,113,105.20 and 80,785,511.20 is: 121,021,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,597,693.60 : 218,113,105.20 = 80,785,511.20 : x
  2. Step 2: Convert to fraction form
    145,597,693.60/218,113,105.20 = 80,785,511.20/x
  3. Step 3: Cross multiply
    145,597,693.60x = 218,113,105.20 × 80,785,511.20
  4. Step 4: Simplify right side
    145,597,693.60x = 17,620,378,703,001,378
  5. Step 5: Solve for x
    x = 17,620,378,703,001,378/145,597,693.60
  6. Step 6: Final answer
    x = 121,021,001.55

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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.