Home / 12,987,097.16-19,480,086.78-3,402,263.48

Finding the Fourth Proportional to 12,987,097.16, 19,480,086.78 and 3,402,263.48

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Solution

The fourth proportional to 12,987,097.16, 19,480,086.78 and 3,402,263.48 is: 5,103,248.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,097.16 : 19,480,086.78 = 3,402,263.48 : x
  2. Step 2: Convert to fraction form
    12,987,097.16/19,480,086.78 = 3,402,263.48/x
  3. Step 3: Cross multiply
    12,987,097.16x = 19,480,086.78 × 3,402,263.48
  4. Step 4: Simplify right side
    12,987,097.16x = 66,276,387,838,824.80
  5. Step 5: Solve for x
    x = 66,276,387,838,824.80/12,987,097.16
  6. Step 6: Final answer
    x = 5,103,248.79

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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.