Home / 21,313,830.70-31,954,999.65-9,173,356.30

Finding the Fourth Proportional to 21,313,830.70, 31,954,999.65 and 9,173,356.30

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Solution

The fourth proportional to 21,313,830.70, 31,954,999.65 and 9,173,356.30 is: 13,753,257.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313,830.70 : 31,954,999.65 = 9,173,356.30 : x
  2. Step 2: Convert to fraction form
    21,313,830.70/31,954,999.65 = 9,173,356.30/x
  3. Step 3: Cross multiply
    21,313,830.70x = 31,954,999.65 × 9,173,356.30
  4. Step 4: Simplify right side
    21,313,830.70x = 293,134,597,355,825.31
  5. Step 5: Solve for x
    x = 293,134,597,355,825.31/21,313,830.70
  6. Step 6: Final answer
    x = 13,753,257.29

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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.