Home / 30,559,890-42,178,638.96-17,515,891.74

Finding the Fourth Proportional to 30,559,890, 42,178,638.96 and 17,515,891.74

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Solution

The fourth proportional to 30,559,890, 42,178,638.96 and 17,515,891.74 is: 24,175,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,559,890 : 42,178,638.96 = 17,515,891.74 : x
  2. Step 2: Convert to fraction form
    30,559,890/42,178,638.96 = 17,515,891.74/x
  3. Step 3: Cross multiply
    30,559,890x = 42,178,638.96 × 17,515,891.74
  4. Step 4: Simplify right side
    30,559,890x = 738,796,473,763,906.12
  5. Step 5: Solve for x
    x = 738,796,473,763,906.12/30,559,890
  6. Step 6: Final answer
    x = 24,175,364.30

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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.