Home / 679,087,151.97-1,018,629,456.59-212,784,273.60

Finding the Fourth Proportional to 679,087,151.97, 1,018,629,456.59 and 212,784,273.60

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Solution

The fourth proportional to 679,087,151.97, 1,018,629,456.59 and 212,784,273.60 is: 319,176,012.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,087,151.97 : 1,018,629,456.59 = 212,784,273.60 : x
  2. Step 2: Convert to fraction form
    679,087,151.97/1,018,629,456.59 = 212,784,273.60/x
  3. Step 3: Cross multiply
    679,087,151.97x = 1,018,629,456.59 × 212,784,273.60
  4. Step 4: Simplify right side
    679,087,151.97x = 216,748,328,988,597,824
  5. Step 5: Solve for x
    x = 216,748,328,988,597,824/679,087,151.97
  6. Step 6: Final answer
    x = 319,176,012.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.