Home / 81,148,247.60-111,996,065.40-50,218,381.04

Finding the Fourth Proportional to 81,148,247.60, 111,996,065.40 and 50,218,381.04

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Solution

The fourth proportional to 81,148,247.60, 111,996,065.40 and 50,218,381.04 is: 69,308,472.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,148,247.60 : 111,996,065.40 = 50,218,381.04 : x
  2. Step 2: Convert to fraction form
    81,148,247.60/111,996,065.40 = 50,218,381.04/x
  3. Step 3: Cross multiply
    81,148,247.60x = 111,996,065.40 × 50,218,381.04
  4. Step 4: Simplify right side
    81,148,247.60x = 5,624,261,087,237,960
  5. Step 5: Solve for x
    x = 5,624,261,087,237,960/81,148,247.60
  6. Step 6: Final answer
    x = 69,308,472.50

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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.