Home / 681,397,608.06-940,328,726.71-368,131,820.94

Finding the Fourth Proportional to 681,397,608.06, 940,328,726.71 and 368,131,820.94

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Solution

The fourth proportional to 681,397,608.06, 940,328,726.71 and 368,131,820.94 is: 508,021,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,397,608.06 : 940,328,726.71 = 368,131,820.94 : x
  2. Step 2: Convert to fraction form
    681,397,608.06/940,328,726.71 = 368,131,820.94/x
  3. Step 3: Cross multiply
    681,397,608.06x = 940,328,726.71 × 368,131,820.94
  4. Step 4: Simplify right side
    681,397,608.06x = 346,164,926,445,943,936
  5. Step 5: Solve for x
    x = 346,164,926,445,943,936/681,397,608.06
  6. Step 6: Final answer
    x = 508,021,927.80

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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.