Home / 139,418,548.25-192,400,070.51-77,538,914.15

Finding the Fourth Proportional to 139,418,548.25, 192,400,070.51 and 77,538,914.15

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Solution

The fourth proportional to 139,418,548.25, 192,400,070.51 and 77,538,914.15 is: 107,005,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,418,548.25 : 192,400,070.51 = 77,538,914.15 : x
  2. Step 2: Convert to fraction form
    139,418,548.25/192,400,070.51 = 77,538,914.15/x
  3. Step 3: Cross multiply
    139,418,548.25x = 192,400,070.51 × 77,538,914.15
  4. Step 4: Simplify right side
    139,418,548.25x = 14,918,492,548,960,682
  5. Step 5: Solve for x
    x = 14,918,492,548,960,682/139,418,548.25
  6. Step 6: Final answer
    x = 107,005,077.42

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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.