Home / 30,730,631.16-42,408,183.66-16,979,497.56

Finding the Fourth Proportional to 30,730,631.16, 42,408,183.66 and 16,979,497.56

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Solution

The fourth proportional to 30,730,631.16, 42,408,183.66 and 16,979,497.56 is: 23,431,658.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,730,631.16 : 42,408,183.66 = 16,979,497.56 : x
  2. Step 2: Convert to fraction form
    30,730,631.16/42,408,183.66 = 16,979,497.56/x
  3. Step 3: Cross multiply
    30,730,631.16x = 42,408,183.66 × 16,979,497.56
  4. Step 4: Simplify right side
    30,730,631.16x = 720,069,650,979,001.75
  5. Step 5: Solve for x
    x = 720,069,650,979,001.75/30,730,631.16
  6. Step 6: Final answer
    x = 23,431,658.37

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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.