Home / 289,415,167,072.24-399,115,752,606.84-191,601,972,448.24

Finding the Fourth Proportional to 289,415,167,072.24, 399,115,752,606.84 and 191,601,972,448.24

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Solution

The fourth proportional to 289,415,167,072.24, 399,115,752,606.84 and 191,601,972,448.24 is: 264,227,221,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,415,167,072.24 : 399,115,752,606.84 = 191,601,972,448.24 : x
  2. Step 2: Convert to fraction form
    289,415,167,072.24/399,115,752,606.84 = 191,601,972,448.24/x
  3. Step 3: Cross multiply
    289,415,167,072.24x = 399,115,752,606.84 × 191,601,972,448.24
  4. Step 4: Simplify right side
    289,415,167,072.24x = 76,471,365,434,634,324,148,224
  5. Step 5: Solve for x
    x = 76,471,365,434,634,324,148,224/289,415,167,072.24
  6. Step 6: Final answer
    x = 264,227,221,428.06

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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.