Home / 115,435,522.80-159,303,600.12-65,874,909.78

Finding the Fourth Proportional to 115,435,522.80, 159,303,600.12 and 65,874,909.78

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Solution

The fourth proportional to 115,435,522.80, 159,303,600.12 and 65,874,909.78 is: 90,908,847.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,435,522.80 : 159,303,600.12 = 65,874,909.78 : x
  2. Step 2: Convert to fraction form
    115,435,522.80/159,303,600.12 = 65,874,909.78/x
  3. Step 3: Cross multiply
    115,435,522.80x = 159,303,600.12 × 65,874,909.78
  4. Step 4: Simplify right side
    115,435,522.80x = 10,494,110,285,534,198
  5. Step 5: Solve for x
    x = 10,494,110,285,534,198/115,435,522.80
  6. Step 6: Final answer
    x = 90,908,847.04

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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.