Home / 12,655,099.52-18,989,559.86-5,367,425.72

Finding the Fourth Proportional to 12,655,099.52, 18,989,559.86 and 5,367,425.72

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Solution

The fourth proportional to 12,655,099.52, 18,989,559.86 and 5,367,425.72 is: 8,054,069.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,655,099.52 : 18,989,559.86 = 5,367,425.72 : x
  2. Step 2: Convert to fraction form
    12,655,099.52/18,989,559.86 = 5,367,425.72/x
  3. Step 3: Cross multiply
    12,655,099.52x = 18,989,559.86 × 5,367,425.72
  4. Step 4: Simplify right side
    12,655,099.52x = 101,925,051,882,258.67
  5. Step 5: Solve for x
    x = 101,925,051,882,258.67/12,655,099.52
  6. Step 6: Final answer
    x = 8,054,069.57

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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.