Home / 356,681,721,209.28-492,220,855,614.96-196,289,638,763.52

Finding the Fourth Proportional to 356,681,721,209.28, 492,220,855,614.96 and 196,289,638,763.52

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Solution

The fourth proportional to 356,681,721,209.28, 492,220,855,614.96 and 196,289,638,763.52 is: 270,879,745,709.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,681,721,209.28 : 492,220,855,614.96 = 196,289,638,763.52 : x
  2. Step 2: Convert to fraction form
    356,681,721,209.28/492,220,855,614.96 = 196,289,638,763.52/x
  3. Step 3: Cross multiply
    356,681,721,209.28x = 492,220,855,614.96 × 196,289,638,763.52
  4. Step 4: Simplify right side
    356,681,721,209.28x = 96,617,853,940,531,225,165,824
  5. Step 5: Solve for x
    x = 96,617,853,940,531,225,165,824/356,681,721,209.28
  6. Step 6: Final answer
    x = 270,879,745,709.88

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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.