Home / 30,691,813.53-42,354,706.34-16,940,781.30

Finding the Fourth Proportional to 30,691,813.53, 42,354,706.34 and 16,940,781.30

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Solution

The fourth proportional to 30,691,813.53, 42,354,706.34 and 16,940,781.30 is: 23,378,280.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,691,813.53 : 42,354,706.34 = 16,940,781.30 : x
  2. Step 2: Convert to fraction form
    30,691,813.53/42,354,706.34 = 16,940,781.30/x
  3. Step 3: Cross multiply
    30,691,813.53x = 42,354,706.34 × 16,940,781.30
  4. Step 4: Simplify right side
    30,691,813.53x = 717,521,817,046,959.62
  5. Step 5: Solve for x
    x = 717,521,817,046,959.62/30,691,813.53
  6. Step 6: Final answer
    x = 23,378,280.22

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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.