Home / 8,464,919.31-11,685,155.65-5,715,327.20

Finding the Fourth Proportional to 8,464,919.31, 11,685,155.65 and 5,715,327.20

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Solution

The fourth proportional to 8,464,919.31, 11,685,155.65 and 5,715,327.20 is: 7,889,559.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,464,919.31 : 11,685,155.65 = 5,715,327.20 : x
  2. Step 2: Convert to fraction form
    8,464,919.31/11,685,155.65 = 5,715,327.20/x
  3. Step 3: Cross multiply
    8,464,919.31x = 11,685,155.65 × 5,715,327.20
  4. Step 4: Simplify right side
    8,464,919.31x = 66,784,487,849,964.59
  5. Step 5: Solve for x
    x = 66,784,487,849,964.59/8,464,919.31
  6. Step 6: Final answer
    x = 7,889,559.89

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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.