Home / 819,575,038.82-1,131,016,937.83-443,231,618.39

Finding the Fourth Proportional to 819,575,038.82, 1,131,016,937.83 and 443,231,618.39

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Solution

The fourth proportional to 819,575,038.82, 1,131,016,937.83 and 443,231,618.39 is: 611,661,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,575,038.82 : 1,131,016,937.83 = 443,231,618.39 : x
  2. Step 2: Convert to fraction form
    819,575,038.82/1,131,016,937.83 = 443,231,618.39/x
  3. Step 3: Cross multiply
    819,575,038.82x = 1,131,016,937.83 × 443,231,618.39
  4. Step 4: Simplify right side
    819,575,038.82x = 501,302,467,774,129,792
  5. Step 5: Solve for x
    x = 501,302,467,774,129,792/819,575,038.82
  6. Step 6: Final answer
    x = 611,661,463.60

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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.