Home / 30,718,729.86-42,391,037.79-16,967,398.74

Finding the Fourth Proportional to 30,718,729.86, 42,391,037.79 and 16,967,398.74

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Solution

The fourth proportional to 30,718,729.86, 42,391,037.79 and 16,967,398.74 is: 23,414,563.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718,729.86 : 42,391,037.79 = 16,967,398.74 : x
  2. Step 2: Convert to fraction form
    30,718,729.86/42,391,037.79 = 16,967,398.74/x
  3. Step 3: Cross multiply
    30,718,729.86x = 42,391,037.79 × 16,967,398.74
  4. Step 4: Simplify right side
    30,718,729.86x = 719,265,641,185,338.25
  5. Step 5: Solve for x
    x = 719,265,641,185,338.25/30,718,729.86
  6. Step 6: Final answer
    x = 23,414,563.18

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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.