Home / 218,013,996,919.14-300,846,763,287.09-121,662,521,305.38

Finding the Fourth Proportional to 218,013,996,919.14, 300,846,763,287.09 and 121,662,521,305.38

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Solution

The fourth proportional to 218,013,996,919.14, 300,846,763,287.09 and 121,662,521,305.38 is: 167,887,274,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,013,996,919.14 : 300,846,763,287.09 = 121,662,521,305.38 : x
  2. Step 2: Convert to fraction form
    218,013,996,919.14/300,846,763,287.09 = 121,662,521,305.38/x
  3. Step 3: Cross multiply
    218,013,996,919.14x = 300,846,763,287.09 × 121,662,521,305.38
  4. Step 4: Simplify right side
    218,013,996,919.14x = 36,601,775,748,070,204,506,112
  5. Step 5: Solve for x
    x = 36,601,775,748,070,204,506,112/218,013,996,919.14
  6. Step 6: Final answer
    x = 167,887,274,511.30

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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.