Home / 1,189,567,215.79-1,641,647,061.05-713,335,119.80

Finding the Fourth Proportional to 1,189,567,215.79, 1,641,647,061.05 and 713,335,119.80

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Solution

The fourth proportional to 1,189,567,215.79, 1,641,647,061.05 and 713,335,119.80 is: 984,429,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,567,215.79 : 1,641,647,061.05 = 713,335,119.80 : x
  2. Step 2: Convert to fraction form
    1,189,567,215.79/1,641,647,061.05 = 713,335,119.80/x
  3. Step 3: Cross multiply
    1,189,567,215.79x = 1,641,647,061.05 × 713,335,119.80
  4. Step 4: Simplify right side
    1,189,567,215.79x = 1,171,044,502,963,419,648
  5. Step 5: Solve for x
    x = 1,171,044,502,963,419,648/1,189,567,215.79
  6. Step 6: Final answer
    x = 984,429,032.19

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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.