Home / 30,578,540.99-42,198,393.42-16,827,505.11

Finding the Fourth Proportional to 30,578,540.99, 42,198,393.42 and 16,827,505.11

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Solution

The fourth proportional to 30,578,540.99, 42,198,393.42 and 16,827,505.11 is: 23,221,960.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578,540.99 : 42,198,393.42 = 16,827,505.11 : x
  2. Step 2: Convert to fraction form
    30,578,540.99/42,198,393.42 = 16,827,505.11/x
  3. Step 3: Cross multiply
    30,578,540.99x = 42,198,393.42 × 16,827,505.11
  4. Step 4: Simplify right side
    30,578,540.99x = 710,093,680,908,840.38
  5. Step 5: Solve for x
    x = 710,093,680,908,840.38/30,578,540.99
  6. Step 6: Final answer
    x = 23,221,960.83

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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.