Home / 12,251,886.70-18,377,830.05-8,142,076.30

Finding the Fourth Proportional to 12,251,886.70, 18,377,830.05 and 8,142,076.30

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Solution

The fourth proportional to 12,251,886.70, 18,377,830.05 and 8,142,076.30 is: 12,213,114.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251,886.70 : 18,377,830.05 = 8,142,076.30 : x
  2. Step 2: Convert to fraction form
    12,251,886.70/18,377,830.05 = 8,142,076.30/x
  3. Step 3: Cross multiply
    12,251,886.70x = 18,377,830.05 × 8,142,076.30
  4. Step 4: Simplify right side
    12,251,886.70x = 149,633,694,495,532.81
  5. Step 5: Solve for x
    x = 149,633,694,495,532.81/12,251,886.70
  6. Step 6: Final answer
    x = 12,213,114.45

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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.