Home / 779,929,858.73-1,169,894,717.08-343,230,542.78

Finding the Fourth Proportional to 779,929,858.73, 1,169,894,717.08 and 343,230,542.78

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Solution

The fourth proportional to 779,929,858.73, 1,169,894,717.08 and 343,230,542.78 is: 514,845,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,929,858.73 : 1,169,894,717.08 = 343,230,542.78 : x
  2. Step 2: Convert to fraction form
    779,929,858.73/1,169,894,717.08 = 343,230,542.78/x
  3. Step 3: Cross multiply
    779,929,858.73x = 1,169,894,717.08 × 343,230,542.78
  4. Step 4: Simplify right side
    779,929,858.73x = 401,543,598,732,115,392
  5. Step 5: Solve for x
    x = 401,543,598,732,115,392/779,929,858.73
  6. Step 6: Final answer
    x = 514,845,782.91

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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.