Home / 9,328,655.89-12,872,979.61-5,142,157.73

Finding the Fourth Proportional to 9,328,655.89, 12,872,979.61 and 5,142,157.73

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Solution

The fourth proportional to 9,328,655.89, 12,872,979.61 and 5,142,157.73 is: 7,095,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328,655.89 : 12,872,979.61 = 5,142,157.73 : x
  2. Step 2: Convert to fraction form
    9,328,655.89/12,872,979.61 = 5,142,157.73/x
  3. Step 3: Cross multiply
    9,328,655.89x = 12,872,979.61 × 5,142,157.73
  4. Step 4: Simplify right side
    9,328,655.89x = 66,194,891,580,747.27
  5. Step 5: Solve for x
    x = 66,194,891,580,747.27/9,328,655.89
  6. Step 6: Final answer
    x = 7,095,865.94

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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.