Home / 9,189,881,583-12,681,907,671.92-5,120,954,786.12

Finding the Fourth Proportional to 9,189,881,583, 12,681,907,671.92 and 5,120,954,786.12

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Solution

The fourth proportional to 9,189,881,583, 12,681,907,671.92 and 5,120,954,786.12 is: 7,066,845,769.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189,881,583 : 12,681,907,671.92 = 5,120,954,786.12 : x
  2. Step 2: Convert to fraction form
    9,189,881,583/12,681,907,671.92 = 5,120,954,786.12/x
  3. Step 3: Cross multiply
    9,189,881,583x = 12,681,907,671.92 × 5,120,954,786.12
  4. Step 4: Simplify right side
    9,189,881,583x = 64,943,475,789,650,673,664
  5. Step 5: Solve for x
    x = 64,943,475,789,650,673,664/9,189,881,583
  6. Step 6: Final answer
    x = 7,066,845,769.79

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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.