Home / 18,893,342.70-28,340,014.05-6,115,139.10

Finding the Fourth Proportional to 18,893,342.70, 28,340,014.05 and 6,115,139.10

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Solution

The fourth proportional to 18,893,342.70, 28,340,014.05 and 6,115,139.10 is: 9,172,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893,342.70 : 28,340,014.05 = 6,115,139.10 : x
  2. Step 2: Convert to fraction form
    18,893,342.70/28,340,014.05 = 6,115,139.10/x
  3. Step 3: Cross multiply
    18,893,342.70x = 28,340,014.05 × 6,115,139.10
  4. Step 4: Simplify right side
    18,893,342.70x = 173,303,128,011,704.34
  5. Step 5: Solve for x
    x = 173,303,128,011,704.34/18,893,342.70
  6. Step 6: Final answer
    x = 9,172,708.65

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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.