Home / 12,509,335.71-18,765,403.25-3,987,695.07

Finding the Fourth Proportional to 12,509,335.71, 18,765,403.25 and 3,987,695.07

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Solution

The fourth proportional to 12,509,335.71, 18,765,403.25 and 3,987,695.07 is: 5,981,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509,335.71 : 18,765,403.25 = 3,987,695.07 : x
  2. Step 2: Convert to fraction form
    12,509,335.71/18,765,403.25 = 3,987,695.07/x
  3. Step 3: Cross multiply
    12,509,335.71x = 18,765,403.25 × 3,987,695.07
  4. Step 4: Simplify right side
    12,509,335.71x = 74,830,706,006,648.50
  5. Step 5: Solve for x
    x = 74,830,706,006,648.50/12,509,335.71
  6. Step 6: Final answer
    x = 5,981,988.79

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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.