Home / 438,757,758,719.88-605,490,615,660.21-243,444,577,059.38

Finding the Fourth Proportional to 438,757,758,719.88, 605,490,615,660.21 and 243,444,577,059.38

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Solution

The fourth proportional to 438,757,758,719.88, 605,490,615,660.21 and 243,444,577,059.38 is: 335,956,239,891.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,757,758,719.88 : 605,490,615,660.21 = 243,444,577,059.38 : x
  2. Step 2: Convert to fraction form
    438,757,758,719.88/605,490,615,660.21 = 243,444,577,059.38/x
  3. Step 3: Cross multiply
    438,757,758,719.88x = 605,490,615,660.21 × 243,444,577,059.38
  4. Step 4: Simplify right side
    438,757,758,719.88x = 147,403,406,842,823,425,654,784
  5. Step 5: Solve for x
    x = 147,403,406,842,823,425,654,784/438,757,758,719.88
  6. Step 6: Final answer
    x = 335,956,239,891.66

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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.