Home / 81,648,009.60-122,472,014.40-73,333,910.40

Finding the Fourth Proportional to 81,648,009.60, 122,472,014.40 and 73,333,910.40

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Solution

The fourth proportional to 81,648,009.60, 122,472,014.40 and 73,333,910.40 is: 110,000,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648,009.60 : 122,472,014.40 = 73,333,910.40 : x
  2. Step 2: Convert to fraction form
    81,648,009.60/122,472,014.40 = 73,333,910.40/x
  3. Step 3: Cross multiply
    81,648,009.60x = 122,472,014.40 × 73,333,910.40
  4. Step 4: Simplify right side
    81,648,009.60x = 8,981,351,730,517,111
  5. Step 5: Solve for x
    x = 8,981,351,730,517,111/81,648,009.60
  6. Step 6: Final answer
    x = 110,000,865.60

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Similar ratio
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1.5x scale

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.