Home / 7,878,494.72-10,872,327.68-4,256,821.76

Finding the Fourth Proportional to 7,878,494.72, 10,872,327.68 and 4,256,821.76

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Solution

The fourth proportional to 7,878,494.72, 10,872,327.68 and 4,256,821.76 is: 5,874,416.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,494.72 : 10,872,327.68 = 4,256,821.76 : x
  2. Step 2: Convert to fraction form
    7,878,494.72/10,872,327.68 = 4,256,821.76/x
  3. Step 3: Cross multiply
    7,878,494.72x = 10,872,327.68 × 4,256,821.76
  4. Step 4: Simplify right side
    7,878,494.72x = 46,281,561,050,074.31
  5. Step 5: Solve for x
    x = 46,281,561,050,074.31/7,878,494.72
  6. Step 6: Final answer
    x = 5,874,416.71

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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.