Home / 15,287,394.60-21,095,972.01-8,318,100.84

Finding the Fourth Proportional to 15,287,394.60, 21,095,972.01 and 8,318,100.84

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Solution

The fourth proportional to 15,287,394.60, 21,095,972.01 and 8,318,100.84 is: 11,478,634.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287,394.60 : 21,095,972.01 = 8,318,100.84 : x
  2. Step 2: Convert to fraction form
    15,287,394.60/21,095,972.01 = 8,318,100.84/x
  3. Step 3: Cross multiply
    15,287,394.60x = 21,095,972.01 × 8,318,100.84
  4. Step 4: Simplify right side
    15,287,394.60x = 175,478,422,496,997.50
  5. Step 5: Solve for x
    x = 175,478,422,496,997.50/15,287,394.60
  6. Step 6: Final answer
    x = 11,478,634.99

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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.