Home / 8,464,920.81-11,685,157.73-5,715,328.70

Finding the Fourth Proportional to 8,464,920.81, 11,685,157.73 and 5,715,328.70

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Solution

The fourth proportional to 8,464,920.81, 11,685,157.73 and 5,715,328.70 is: 7,889,561.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,464,920.81 : 11,685,157.73 = 5,715,328.70 : x
  2. Step 2: Convert to fraction form
    8,464,920.81/11,685,157.73 = 5,715,328.70/x
  3. Step 3: Cross multiply
    8,464,920.81x = 11,685,157.73 × 5,715,328.70
  4. Step 4: Simplify right side
    8,464,920.81x = 66,784,517,251,293.42
  5. Step 5: Solve for x
    x = 66,784,517,251,293.42/8,464,920.81
  6. Step 6: Final answer
    x = 7,889,561.96

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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.