Home / 1,238,478,349.48-1,709,100,403.98-681,561,396.54

Finding the Fourth Proportional to 1,238,478,349.48, 1,709,100,403.98 and 681,561,396.54

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Solution

The fourth proportional to 1,238,478,349.48, 1,709,100,403.98 and 681,561,396.54 is: 940,554,882.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,478,349.48 : 1,709,100,403.98 = 681,561,396.54 : x
  2. Step 2: Convert to fraction form
    1,238,478,349.48/1,709,100,403.98 = 681,561,396.54/x
  3. Step 3: Cross multiply
    1,238,478,349.48x = 1,709,100,403.98 × 681,561,396.54
  4. Step 4: Simplify right side
    1,238,478,349.48x = 1,164,856,858,163,686,912
  5. Step 5: Solve for x
    x = 1,164,856,858,163,686,912/1,238,478,349.48
  6. Step 6: Final answer
    x = 940,554,882.25

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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.