Home / 12,138,557.40-18,207,836.10-3,163,109.40

Finding the Fourth Proportional to 12,138,557.40, 18,207,836.10 and 3,163,109.40

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Solution

The fourth proportional to 12,138,557.40, 18,207,836.10 and 3,163,109.40 is: 4,744,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,557.40 : 18,207,836.10 = 3,163,109.40 : x
  2. Step 2: Convert to fraction form
    12,138,557.40/18,207,836.10 = 3,163,109.40/x
  3. Step 3: Cross multiply
    12,138,557.40x = 18,207,836.10 × 3,163,109.40
  4. Step 4: Simplify right side
    12,138,557.40x = 57,593,377,521,569.34
  5. Step 5: Solve for x
    x = 57,593,377,521,569.34/12,138,557.40
  6. Step 6: Final answer
    x = 4,744,664.10

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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.