Home / 12,940,929.60-19,402,063.20-8,455,732.80

Finding the Fourth Proportional to 12,940,929.60, 19,402,063.20 and 8,455,732.80

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Solution

The fourth proportional to 12,940,929.60, 19,402,063.20 and 8,455,732.80 is: 12,677,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940,929.60 : 19,402,063.20 = 8,455,732.80 : x
  2. Step 2: Convert to fraction form
    12,940,929.60/19,402,063.20 = 8,455,732.80/x
  3. Step 3: Cross multiply
    12,940,929.60x = 19,402,063.20 × 8,455,732.80
  4. Step 4: Simplify right side
    12,940,929.60x = 164,058,662,187,912.97
  5. Step 5: Solve for x
    x = 164,058,662,187,912.97/12,940,929.60
  6. Step 6: Final answer
    x = 12,677,502.10

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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.