Home / 66,588,003.60-99,882,005.40-21,154,390.80

Finding the Fourth Proportional to 66,588,003.60, 99,882,005.40 and 21,154,390.80

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Solution

The fourth proportional to 66,588,003.60, 99,882,005.40 and 21,154,390.80 is: 31,731,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,588,003.60 : 99,882,005.40 = 21,154,390.80 : x
  2. Step 2: Convert to fraction form
    66,588,003.60/99,882,005.40 = 21,154,390.80/x
  3. Step 3: Cross multiply
    66,588,003.60x = 99,882,005.40 × 21,154,390.80
  4. Step 4: Simplify right side
    66,588,003.60x = 2,112,942,976,119,310.50
  5. Step 5: Solve for x
    x = 2,112,942,976,119,310.50/66,588,003.60
  6. Step 6: Final answer
    x = 31,731,586.20

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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.