Home / 1,317,370,771.42-1,817,974,423.97-722,660,058.25

Finding the Fourth Proportional to 1,317,370,771.42, 1,817,974,423.97 and 722,660,058.25

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Solution

The fourth proportional to 1,317,370,771.42, 1,817,974,423.97 and 722,660,058.25 is: 997,272,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,370,771.42 : 1,817,974,423.97 = 722,660,058.25 : x
  2. Step 2: Convert to fraction form
    1,317,370,771.42/1,817,974,423.97 = 722,660,058.25/x
  3. Step 3: Cross multiply
    1,317,370,771.42x = 1,817,974,423.97 × 722,660,058.25
  4. Step 4: Simplify right side
    1,317,370,771.42x = 1,313,777,503,123,170,304
  5. Step 5: Solve for x
    x = 1,313,777,503,123,170,304/1,317,370,771.42
  6. Step 6: Final answer
    x = 997,272,394.09

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Double scale
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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.