Home / 987,317,241,867.36-1,362,388,853,999.70-553,680,394,182.72

Finding the Fourth Proportional to 987,317,241,867.36, 1,362,388,853,999.70 and 553,680,394,182.72

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Solution

The fourth proportional to 987,317,241,867.36, 1,362,388,853,999.70 and 553,680,394,182.72 is: 764,017,851,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,317,241,867.36 : 1,362,388,853,999.70 = 553,680,394,182.72 : x
  2. Step 2: Convert to fraction form
    987,317,241,867.36/1,362,388,853,999.70 = 553,680,394,182.72/x
  3. Step 3: Cross multiply
    987,317,241,867.36x = 1,362,388,853,999.70 × 553,680,394,182.72
  4. Step 4: Simplify right side
    987,317,241,867.36x = 754,327,997,712,697,930,022,912
  5. Step 5: Solve for x
    x = 754,327,997,712,697,930,022,912/987,317,241,867.36
  6. Step 6: Final answer
    x = 764,017,851,330.14

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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.