Home / 7,761,979.31-11,630,097.71-4,720,143.89

Finding the Fourth Proportional to 7,761,979.31, 11,630,097.71 and 4,720,143.89

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Solution

The fourth proportional to 7,761,979.31, 11,630,097.71 and 4,720,143.89 is: 7,072,388.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761,979.31 : 11,630,097.71 = 4,720,143.89 : x
  2. Step 2: Convert to fraction form
    7,761,979.31/11,630,097.71 = 4,720,143.89/x
  3. Step 3: Cross multiply
    7,761,979.31x = 11,630,097.71 × 4,720,143.89
  4. Step 4: Simplify right side
    7,761,979.31x = 54,895,734,603,715.26
  5. Step 5: Solve for x
    x = 54,895,734,603,715.26/7,761,979.31
  6. Step 6: Final answer
    x = 7,072,388.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.