Home / 81,459,009.60-122,188,514.40-47,021,632.80

Finding the Fourth Proportional to 81,459,009.60, 122,188,514.40 and 47,021,632.80

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Solution

The fourth proportional to 81,459,009.60, 122,188,514.40 and 47,021,632.80 is: 70,532,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,459,009.60 : 122,188,514.40 = 47,021,632.80 : x
  2. Step 2: Convert to fraction form
    81,459,009.60/122,188,514.40 = 47,021,632.80/x
  3. Step 3: Cross multiply
    81,459,009.60x = 122,188,514.40 × 47,021,632.80
  4. Step 4: Simplify right side
    81,459,009.60x = 5,745,503,456,494,312
  5. Step 5: Solve for x
    x = 5,745,503,456,494,312/81,459,009.60
  6. Step 6: Final answer
    x = 70,532,449.20

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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.