Home / 30,718,731.86-42,391,040.55-16,967,400.74

Finding the Fourth Proportional to 30,718,731.86, 42,391,040.55 and 16,967,400.74

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Solution

The fourth proportional to 30,718,731.86, 42,391,040.55 and 16,967,400.74 is: 23,414,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718,731.86 : 42,391,040.55 = 16,967,400.74 : x
  2. Step 2: Convert to fraction form
    30,718,731.86/42,391,040.55 = 16,967,400.74/x
  3. Step 3: Cross multiply
    30,718,731.86x = 42,391,040.55 × 16,967,400.74
  4. Step 4: Simplify right side
    30,718,731.86x = 719,265,772,797,439.88
  5. Step 5: Solve for x
    x = 719,265,772,797,439.88/30,718,731.86
  6. Step 6: Final answer
    x = 23,414,565.94

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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.