Home / 12,143,886.90-18,204,166.35-7,021,058.10

Finding the Fourth Proportional to 12,143,886.90, 18,204,166.35 and 7,021,058.10

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Solution

The fourth proportional to 12,143,886.90, 18,204,166.35 and 7,021,058.10 is: 10,524,843.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,886.90 : 18,204,166.35 = 7,021,058.10 : x
  2. Step 2: Convert to fraction form
    12,143,886.90/18,204,166.35 = 7,021,058.10/x
  3. Step 3: Cross multiply
    12,143,886.90x = 18,204,166.35 × 7,021,058.10
  4. Step 4: Simplify right side
    12,143,886.90x = 127,812,509,605,414.94
  5. Step 5: Solve for x
    x = 127,812,509,605,414.94/12,143,886.90
  6. Step 6: Final answer
    x = 10,524,843.54

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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.