Home / 81,148,234.60-111,996,047.46-50,218,368.04

Finding the Fourth Proportional to 81,148,234.60, 111,996,047.46 and 50,218,368.04

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Solution

The fourth proportional to 81,148,234.60, 111,996,047.46 and 50,218,368.04 is: 69,308,454.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,148,234.60 : 111,996,047.46 = 50,218,368.04 : x
  2. Step 2: Convert to fraction form
    81,148,234.60/111,996,047.46 = 50,218,368.04/x
  3. Step 3: Cross multiply
    81,148,234.60x = 111,996,047.46 × 50,218,368.04
  4. Step 4: Simplify right side
    81,148,234.60x = 5,624,258,730,371,587
  5. Step 5: Solve for x
    x = 5,624,258,730,371,587/81,148,234.60
  6. Step 6: Final answer
    x = 69,308,454.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.