Home / 28,079,922.60-42,124,409.89-8,649,139.56

Finding the Fourth Proportional to 28,079,922.60, 42,124,409.89 and 8,649,139.56

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Solution

The fourth proportional to 28,079,922.60, 42,124,409.89 and 8,649,139.56 is: 12,975,103.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079,922.60 : 42,124,409.89 = 8,649,139.56 : x
  2. Step 2: Convert to fraction form
    28,079,922.60/42,124,409.89 = 8,649,139.56/x
  3. Step 3: Cross multiply
    28,079,922.60x = 42,124,409.89 × 8,649,139.56
  4. Step 4: Simplify right side
    28,079,922.60x = 364,339,900,186,501.44
  5. Step 5: Solve for x
    x = 364,339,900,186,501.44/28,079,922.60
  6. Step 6: Final answer
    x = 12,975,103.44

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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.