Home / 15,148,898.66-20,905,996.04-8,959,251.26

Finding the Fourth Proportional to 15,148,898.66, 20,905,996.04 and 8,959,251.26

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Solution

The fourth proportional to 15,148,898.66, 20,905,996.04 and 8,959,251.26 is: 12,364,071.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148,898.66 : 20,905,996.04 = 8,959,251.26 : x
  2. Step 2: Convert to fraction form
    15,148,898.66/20,905,996.04 = 8,959,251.26/x
  3. Step 3: Cross multiply
    15,148,898.66x = 20,905,996.04 × 8,959,251.26
  4. Step 4: Simplify right side
    15,148,898.66x = 187,302,071,318,128.75
  5. Step 5: Solve for x
    x = 187,302,071,318,128.75/15,148,898.66
  6. Step 6: Final answer
    x = 12,364,071.84

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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.