Home / 30,730,597.29-42,408,137.21-16,979,463.45

Finding the Fourth Proportional to 30,730,597.29, 42,408,137.21 and 16,979,463.45

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Solution

The fourth proportional to 30,730,597.29, 42,408,137.21 and 16,979,463.45 is: 23,431,611.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,730,597.29 : 42,408,137.21 = 16,979,463.45 : x
  2. Step 2: Convert to fraction form
    30,730,597.29/42,408,137.21 = 16,979,463.45/x
  3. Step 3: Cross multiply
    30,730,597.29x = 42,408,137.21 × 16,979,463.45
  4. Step 4: Simplify right side
    30,730,597.29x = 720,067,415,654,882.62
  5. Step 5: Solve for x
    x = 720,067,415,654,882.62/30,730,597.29
  6. Step 6: Final answer
    x = 23,431,611.46

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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.