Home / 113,310,948.60-169,966,422.90-78,873,571.80

Finding the Fourth Proportional to 113,310,948.60, 169,966,422.90 and 78,873,571.80

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Solution

The fourth proportional to 113,310,948.60, 169,966,422.90 and 78,873,571.80 is: 118,310,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,310,948.60 : 169,966,422.90 = 78,873,571.80 : x
  2. Step 2: Convert to fraction form
    113,310,948.60/169,966,422.90 = 78,873,571.80/x
  3. Step 3: Cross multiply
    113,310,948.60x = 169,966,422.90 × 78,873,571.80
  4. Step 4: Simplify right side
    113,310,948.60x = 13,405,858,860,192,314
  5. Step 5: Solve for x
    x = 13,405,858,860,192,314/113,310,948.60
  6. Step 6: Final answer
    x = 118,310,357.70

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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.