Home / 368,973,023,929.12-509,169,126,876.24-199,996,667,126.56

Finding the Fourth Proportional to 368,973,023,929.12, 509,169,126,876.24 and 199,996,667,126.56

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Solution

The fourth proportional to 368,973,023,929.12, 509,169,126,876.24 and 199,996,667,126.56 is: 275,988,003,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,973,023,929.12 : 509,169,126,876.24 = 199,996,667,126.56 : x
  2. Step 2: Convert to fraction form
    368,973,023,929.12/509,169,126,876.24 = 199,996,667,126.56/x
  3. Step 3: Cross multiply
    368,973,023,929.12x = 509,169,126,876.24 × 199,996,667,126.56
  4. Step 4: Simplify right side
    368,973,023,929.12x = 101,832,128,378,988,562,219,008
  5. Step 5: Solve for x
    x = 101,832,128,378,988,562,219,008/368,973,023,929.12
  6. Step 6: Final answer
    x = 275,988,003,932.10

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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.