Home / 30,790,071.21-42,490,410.88-16,661,257.82

Finding the Fourth Proportional to 30,790,071.21, 42,490,410.88 and 16,661,257.82

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Solution

The fourth proportional to 30,790,071.21, 42,490,410.88 and 16,661,257.82 is: 22,992,596.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790,071.21 : 42,490,410.88 = 16,661,257.82 : x
  2. Step 2: Convert to fraction form
    30,790,071.21/42,490,410.88 = 16,661,257.82/x
  3. Step 3: Cross multiply
    30,790,071.21x = 42,490,410.88 × 16,661,257.82
  4. Step 4: Simplify right side
    30,790,071.21x = 707,943,690,549,413.12
  5. Step 5: Solve for x
    x = 707,943,690,549,413.12/30,790,071.21
  6. Step 6: Final answer
    x = 22,992,596.73

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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.