Home / 438,757,758,721.38-605,490,615,662.28-243,444,577,060.89

Finding the Fourth Proportional to 438,757,758,721.38, 605,490,615,662.28 and 243,444,577,060.89

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Solution

The fourth proportional to 438,757,758,721.38, 605,490,615,662.28 and 243,444,577,060.89 is: 335,956,239,893.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,757,758,721.38 : 605,490,615,662.28 = 243,444,577,060.89 : x
  2. Step 2: Convert to fraction form
    438,757,758,721.38/605,490,615,662.28 = 243,444,577,060.89/x
  3. Step 3: Cross multiply
    438,757,758,721.38x = 605,490,615,662.28 × 243,444,577,060.89
  4. Step 4: Simplify right side
    438,757,758,721.38x = 147,403,406,844,241,670,832,128
  5. Step 5: Solve for x
    x = 147,403,406,844,241,670,832,128/438,757,758,721.38
  6. Step 6: Final answer
    x = 335,956,239,893.75

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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.