Home / 19,313,329.10-28,965,499.28-7,188,502.69

Finding the Fourth Proportional to 19,313,329.10, 28,965,499.28 and 7,188,502.69

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Solution

The fourth proportional to 19,313,329.10, 28,965,499.28 and 7,188,502.69 is: 10,781,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313,329.10 : 28,965,499.28 = 7,188,502.69 : x
  2. Step 2: Convert to fraction form
    19,313,329.10/28,965,499.28 = 7,188,502.69/x
  3. Step 3: Cross multiply
    19,313,329.10x = 28,965,499.28 × 7,188,502.69
  4. Step 4: Simplify right side
    19,313,329.10x = 208,218,569,310,703.03
  5. Step 5: Solve for x
    x = 208,218,569,310,703.03/19,313,329.10
  6. Step 6: Final answer
    x = 10,781,081.20

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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.