Home / 30,894,841.54-42,636,874.24-17,143,805.68

Finding the Fourth Proportional to 30,894,841.54, 42,636,874.24 and 17,143,805.68

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Solution

The fourth proportional to 30,894,841.54, 42,636,874.24 and 17,143,805.68 is: 23,659,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,894,841.54 : 42,636,874.24 = 17,143,805.68 : x
  2. Step 2: Convert to fraction form
    30,894,841.54/42,636,874.24 = 17,143,805.68/x
  3. Step 3: Cross multiply
    30,894,841.54x = 42,636,874.24 × 17,143,805.68
  4. Step 4: Simplify right side
    30,894,841.54x = 730,958,286,773,157.75
  5. Step 5: Solve for x
    x = 730,958,286,773,157.75/30,894,841.54
  6. Step 6: Final answer
    x = 23,659,557.72

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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.