Home / 132,859,672.40-199,373,489.40-78,272,152.40

Finding the Fourth Proportional to 132,859,672.40, 199,373,489.40 and 78,272,152.40

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Solution

The fourth proportional to 132,859,672.40, 199,373,489.40 and 78,272,152.40 is: 117,457,704.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,859,672.40 : 199,373,489.40 = 78,272,152.40 : x
  2. Step 2: Convert to fraction form
    132,859,672.40/199,373,489.40 = 78,272,152.40/x
  3. Step 3: Cross multiply
    132,859,672.40x = 199,373,489.40 × 78,272,152.40
  4. Step 4: Simplify right side
    132,859,672.40x = 15,605,392,146,836,586
  5. Step 5: Solve for x
    x = 15,605,392,146,836,586/132,859,672.40
  6. Step 6: Final answer
    x = 117,457,704.55

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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.