Home / 20,890,431,202.97-28,828,672,266.75-11,374,960,169

Finding the Fourth Proportional to 20,890,431,202.97, 28,828,672,266.75 and 11,374,960,169

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Solution

The fourth proportional to 20,890,431,202.97, 28,828,672,266.75 and 11,374,960,169 is: 15,697,378,171.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,890,431,202.97 : 28,828,672,266.75 = 11,374,960,169 : x
  2. Step 2: Convert to fraction form
    20,890,431,202.97/28,828,672,266.75 = 11,374,960,169/x
  3. Step 3: Cross multiply
    20,890,431,202.97x = 28,828,672,266.75 × 11,374,960,169
  4. Step 4: Simplify right side
    20,890,431,202.97x = 327,924,998,759,436,189,696
  5. Step 5: Solve for x
    x = 327,924,998,759,436,189,696/20,890,431,202.97
  6. Step 6: Final answer
    x = 15,697,378,171.53

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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.