Home / 12,462,480.90-18,693,721.35-7,675,575.30

Finding the Fourth Proportional to 12,462,480.90, 18,693,721.35 and 7,675,575.30

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Solution

The fourth proportional to 12,462,480.90, 18,693,721.35 and 7,675,575.30 is: 11,513,362.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,480.90 : 18,693,721.35 = 7,675,575.30 : x
  2. Step 2: Convert to fraction form
    12,462,480.90/18,693,721.35 = 7,675,575.30/x
  3. Step 3: Cross multiply
    12,462,480.90x = 18,693,721.35 × 7,675,575.30
  4. Step 4: Simplify right side
    12,462,480.90x = 143,485,065,859,142.66
  5. Step 5: Solve for x
    x = 143,485,065,859,142.66/12,462,480.90
  6. Step 6: Final answer
    x = 11,513,362.95

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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.