Home / 13,511,147,623.72-18,645,535,390.76-7,718,218,219.84

Finding the Fourth Proportional to 13,511,147,623.72, 18,645,535,390.76 and 7,718,218,219.84

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Solution

The fourth proportional to 13,511,147,623.72, 18,645,535,390.76 and 7,718,218,219.84 is: 10,651,227,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511,147,623.72 : 18,645,535,390.76 = 7,718,218,219.84 : x
  2. Step 2: Convert to fraction form
    13,511,147,623.72/18,645,535,390.76 = 7,718,218,219.84/x
  3. Step 3: Cross multiply
    13,511,147,623.72x = 18,645,535,390.76 × 7,718,218,219.84
  4. Step 4: Simplify right side
    13,511,147,623.72x = 143,910,310,971,635,351,552
  5. Step 5: Solve for x
    x = 143,910,310,971,635,351,552/13,511,147,623.72
  6. Step 6: Final answer
    x = 10,651,227,784.60

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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.