Home / 218,013,996,921.14-300,846,763,289.85-121,662,521,307.38

Finding the Fourth Proportional to 218,013,996,921.14, 300,846,763,289.85 and 121,662,521,307.38

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Solution

The fourth proportional to 218,013,996,921.14, 300,846,763,289.85 and 121,662,521,307.38 is: 167,887,274,514.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,013,996,921.14 : 300,846,763,289.85 = 121,662,521,307.38 : x
  2. Step 2: Convert to fraction form
    218,013,996,921.14/300,846,763,289.85 = 121,662,521,307.38/x
  3. Step 3: Cross multiply
    218,013,996,921.14x = 300,846,763,289.85 × 121,662,521,307.38
  4. Step 4: Simplify right side
    218,013,996,921.14x = 36,601,775,749,007,681,781,760
  5. Step 5: Solve for x
    x = 36,601,775,749,007,681,781,760/218,013,996,921.14
  6. Step 6: Final answer
    x = 167,887,274,514.06

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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.