Home / 19,313,320.55-28,965,486.49-7,188,494.13

Finding the Fourth Proportional to 19,313,320.55, 28,965,486.49 and 7,188,494.13

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Solution

The fourth proportional to 19,313,320.55, 28,965,486.49 and 7,188,494.13 is: 10,781,068.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313,320.55 : 28,965,486.49 = 7,188,494.13 : x
  2. Step 2: Convert to fraction form
    19,313,320.55/28,965,486.49 = 7,188,494.13/x
  3. Step 3: Cross multiply
    19,313,320.55x = 28,965,486.49 × 7,188,494.13
  4. Step 4: Simplify right side
    19,313,320.55x = 208,218,229,605,959.28
  5. Step 5: Solve for x
    x = 208,218,229,605,959.28/19,313,320.55
  6. Step 6: Final answer
    x = 10,781,068.39

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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.