Home / 12,815,919.68-17,685,939.64-7,014,650.68

Finding the Fourth Proportional to 12,815,919.68, 17,685,939.64 and 7,014,650.68

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Solution

The fourth proportional to 12,815,919.68, 17,685,939.64 and 7,014,650.68 is: 9,680,201.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815,919.68 : 17,685,939.64 = 7,014,650.68 : x
  2. Step 2: Convert to fraction form
    12,815,919.68/17,685,939.64 = 7,014,650.68/x
  3. Step 3: Cross multiply
    12,815,919.68x = 17,685,939.64 × 7,014,650.68
  4. Step 4: Simplify right side
    12,815,919.68x = 124,060,688,522,164.95
  5. Step 5: Solve for x
    x = 124,060,688,522,164.95/12,815,919.68
  6. Step 6: Final answer
    x = 9,680,201.78

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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.