Home / 81,959,188.40-113,103,721.14-45,289,759.40

Finding the Fourth Proportional to 81,959,188.40, 113,103,721.14 and 45,289,759.40

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Solution

The fourth proportional to 81,959,188.40, 113,103,721.14 and 45,289,759.40 is: 62,499,890.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,959,188.40 : 113,103,721.14 = 45,289,759.40 : x
  2. Step 2: Convert to fraction form
    81,959,188.40/113,103,721.14 = 45,289,759.40/x
  3. Step 3: Cross multiply
    81,959,188.40x = 113,103,721.14 × 45,289,759.40
  4. Step 4: Simplify right side
    81,959,188.40x = 5,122,440,317,675,294
  5. Step 5: Solve for x
    x = 5,122,440,317,675,294/81,959,188.40
  6. Step 6: Final answer
    x = 62,499,890.71

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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.