Home / 99,931,969.60-149,674,005.60-82,016,065.60

Finding the Fourth Proportional to 99,931,969.60, 149,674,005.60 and 82,016,065.60

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Solution

The fourth proportional to 99,931,969.60, 149,674,005.60 and 82,016,065.60 is: 122,840,299.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,931,969.60 : 149,674,005.60 = 82,016,065.60 : x
  2. Step 2: Convert to fraction form
    99,931,969.60/149,674,005.60 = 82,016,065.60/x
  3. Step 3: Cross multiply
    99,931,969.60x = 149,674,005.60 × 82,016,065.60
  4. Step 4: Simplify right side
    99,931,969.60x = 12,275,673,061,904,366
  5. Step 5: Solve for x
    x = 12,275,673,061,904,366/99,931,969.60
  6. Step 6: Final answer
    x = 122,840,299.37

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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.