Home / 9,775,478.20-13,490,469.28-5,645,434.62

Finding the Fourth Proportional to 9,775,478.20, 13,490,469.28 and 5,645,434.62

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Solution

The fourth proportional to 9,775,478.20, 13,490,469.28 and 5,645,434.62 is: 7,790,878.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,775,478.20 : 13,490,469.28 = 5,645,434.62 : x
  2. Step 2: Convert to fraction form
    9,775,478.20/13,490,469.28 = 5,645,434.62/x
  3. Step 3: Cross multiply
    9,775,478.20x = 13,490,469.28 × 5,645,434.62
  4. Step 4: Simplify right side
    9,775,478.20x = 76,159,562,313,358.47
  5. Step 5: Solve for x
    x = 76,159,562,313,358.47/9,775,478.20
  6. Step 6: Final answer
    x = 7,790,878.44

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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.