Home / 30,730,519.04-42,408,029.22-16,979,385.20

Finding the Fourth Proportional to 30,730,519.04, 42,408,029.22 and 16,979,385.20

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Solution

The fourth proportional to 30,730,519.04, 42,408,029.22 and 16,979,385.20 is: 23,431,503.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,730,519.04 : 42,408,029.22 = 16,979,385.20 : x
  2. Step 2: Convert to fraction form
    30,730,519.04/42,408,029.22 = 16,979,385.20/x
  3. Step 3: Cross multiply
    30,730,519.04x = 42,408,029.22 × 16,979,385.20
  4. Step 4: Simplify right side
    30,730,519.04x = 720,062,263,699,235.50
  5. Step 5: Solve for x
    x = 720,062,263,699,235.50/30,730,519.04
  6. Step 6: Final answer
    x = 23,431,503.48

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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.