Home / 87,771,034.47-121,078,106.10-54,269,804.47

Finding the Fourth Proportional to 87,771,034.47, 121,078,106.10 and 54,269,804.47

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Solution

The fourth proportional to 87,771,034.47, 121,078,106.10 and 54,269,804.47 is: 74,863,936.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,771,034.47 : 121,078,106.10 = 54,269,804.47 : x
  2. Step 2: Convert to fraction form
    87,771,034.47/121,078,106.10 = 54,269,804.47/x
  3. Step 3: Cross multiply
    87,771,034.47x = 121,078,106.10 × 54,269,804.47
  4. Step 4: Simplify right side
    87,771,034.47x = 6,570,885,143,644,914
  5. Step 5: Solve for x
    x = 6,570,885,143,644,914/87,771,034.47
  6. Step 6: Final answer
    x = 74,863,936.42

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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.