Home / 144,813,425.31-199,846,445.63-78,738,359.67

Finding the Fourth Proportional to 144,813,425.31, 199,846,445.63 and 78,738,359.67

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Solution

The fourth proportional to 144,813,425.31, 199,846,445.63 and 78,738,359.67 is: 108,661,067.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,813,425.31 : 199,846,445.63 = 78,738,359.67 : x
  2. Step 2: Convert to fraction form
    144,813,425.31/199,846,445.63 = 78,738,359.67/x
  3. Step 3: Cross multiply
    144,813,425.31x = 199,846,445.63 × 78,738,359.67
  4. Step 4: Simplify right side
    144,813,425.31x = 15,735,581,314,392,348
  5. Step 5: Solve for x
    x = 15,735,581,314,392,348/144,813,425.31
  6. Step 6: Final answer
    x = 108,661,067.03

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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.