Home / 81,224,707.70-121,874,267.20-35,180,659.46

Finding the Fourth Proportional to 81,224,707.70, 121,874,267.20 and 35,180,659.46

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Solution

The fourth proportional to 81,224,707.70, 121,874,267.20 and 35,180,659.46 is: 52,787,103.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,224,707.70 : 121,874,267.20 = 35,180,659.46 : x
  2. Step 2: Convert to fraction form
    81,224,707.70/121,874,267.20 = 35,180,659.46/x
  3. Step 3: Cross multiply
    81,224,707.70x = 121,874,267.20 × 35,180,659.46
  4. Step 4: Simplify right side
    81,224,707.70x = 4,287,617,091,300,248
  5. Step 5: Solve for x
    x = 4,287,617,091,300,248/81,224,707.70
  6. Step 6: Final answer
    x = 52,787,103.98

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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.