Home / 127,639,361.77-176,147,017.58-71,129,185.85

Finding the Fourth Proportional to 127,639,361.77, 176,147,017.58 and 71,129,185.85

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Solution

The fourth proportional to 127,639,361.77, 176,147,017.58 and 71,129,185.85 is: 98,160,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,639,361.77 : 176,147,017.58 = 71,129,185.85 : x
  2. Step 2: Convert to fraction form
    127,639,361.77/176,147,017.58 = 71,129,185.85/x
  3. Step 3: Cross multiply
    127,639,361.77x = 176,147,017.58 × 71,129,185.85
  4. Step 4: Simplify right side
    127,639,361.77x = 12,529,193,950,989,230
  5. Step 5: Solve for x
    x = 12,529,193,950,989,230/127,639,361.77
  6. Step 6: Final answer
    x = 98,160,894.71

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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.