Home / 639,851,781,633.54-959,675,505,394.80-186,464,633,486.64

Finding the Fourth Proportional to 639,851,781,633.54, 959,675,505,394.80 and 186,464,633,486.64

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Solution

The fourth proportional to 639,851,781,633.54, 959,675,505,394.80 and 186,464,633,486.64 is: 279,667,176,861.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,851,781,633.54 : 959,675,505,394.80 = 186,464,633,486.64 : x
  2. Step 2: Convert to fraction form
    639,851,781,633.54/959,675,505,394.80 = 186,464,633,486.64/x
  3. Step 3: Cross multiply
    639,851,781,633.54x = 959,675,505,394.80 × 186,464,633,486.64
  4. Step 4: Simplify right side
    639,851,781,633.54x = 178,945,541,379,547,419,639,808
  5. Step 5: Solve for x
    x = 178,945,541,379,547,419,639,808/639,851,781,633.54
  6. Step 6: Final answer
    x = 279,667,176,861.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.