Home / 66,421,834.79-99,629,209.24-17,898,909.53

Finding the Fourth Proportional to 66,421,834.79, 99,629,209.24 and 17,898,909.53

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Solution

The fourth proportional to 66,421,834.79, 99,629,209.24 and 17,898,909.53 is: 26,847,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,421,834.79 : 99,629,209.24 = 17,898,909.53 : x
  2. Step 2: Convert to fraction form
    66,421,834.79/99,629,209.24 = 17,898,909.53/x
  3. Step 3: Cross multiply
    66,421,834.79x = 99,629,209.24 × 17,898,909.53
  4. Step 4: Simplify right side
    66,421,834.79x = 1,783,254,202,189,306.50
  5. Step 5: Solve for x
    x = 1,783,254,202,189,306.50/66,421,834.79
  6. Step 6: Final answer
    x = 26,847,409.56

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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.