Home / 21,388,680-29,516,392.80-11,599,121.16

Finding the Fourth Proportional to 21,388,680, 29,516,392.80 and 11,599,121.16

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Solution

The fourth proportional to 21,388,680, 29,516,392.80 and 11,599,121.16 is: 16,006,795.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388,680 : 29,516,392.80 = 11,599,121.16 : x
  2. Step 2: Convert to fraction form
    21,388,680/29,516,392.80 = 11,599,121.16/x
  3. Step 3: Cross multiply
    21,388,680x = 29,516,392.80 × 11,599,121.16
  4. Step 4: Simplify right side
    21,388,680x = 342,364,216,293,351.69
  5. Step 5: Solve for x
    x = 342,364,216,293,351.69/21,388,680
  6. Step 6: Final answer
    x = 16,006,795.01

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.