Home / 17,915,139.19-26,868,279.75-7,678,838.13

Finding the Fourth Proportional to 17,915,139.19, 26,868,279.75 and 7,678,838.13

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Solution

The fourth proportional to 17,915,139.19, 26,868,279.75 and 7,678,838.13 is: 11,516,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,915,139.19 : 26,868,279.75 = 7,678,838.13 : x
  2. Step 2: Convert to fraction form
    17,915,139.19/26,868,279.75 = 7,678,838.13/x
  3. Step 3: Cross multiply
    17,915,139.19x = 26,868,279.75 × 7,678,838.13
  4. Step 4: Simplify right side
    17,915,139.19x = 206,317,171,031,806.88
  5. Step 5: Solve for x
    x = 206,317,171,031,806.88/17,915,139.19
  6. Step 6: Final answer
    x = 11,516,358.81

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Double scale
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1.5x scale

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.