Home / 12,702,420.25-19,053,645.59-3,480,471.52

Finding the Fourth Proportional to 12,702,420.25, 19,053,645.59 and 3,480,471.52

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Solution

The fourth proportional to 12,702,420.25, 19,053,645.59 and 3,480,471.52 is: 5,220,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,702,420.25 : 19,053,645.59 = 3,480,471.52 : x
  2. Step 2: Convert to fraction form
    12,702,420.25/19,053,645.59 = 3,480,471.52/x
  3. Step 3: Cross multiply
    12,702,420.25x = 19,053,645.59 × 3,480,471.52
  4. Step 4: Simplify right side
    12,702,420.25x = 66,315,670,789,235.66
  5. Step 5: Solve for x
    x = 66,315,670,789,235.66/12,702,420.25
  6. Step 6: Final answer
    x = 5,220,711.45

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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.