Home / 30,309,815.10-45,493,466.13-18,760,346.31

Finding the Fourth Proportional to 30,309,815.10, 45,493,466.13 and 18,760,346.31

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Solution

The fourth proportional to 30,309,815.10, 45,493,466.13 and 18,760,346.31 is: 28,158,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,309,815.10 : 45,493,466.13 = 18,760,346.31 : x
  2. Step 2: Convert to fraction form
    30,309,815.10/45,493,466.13 = 18,760,346.31/x
  3. Step 3: Cross multiply
    30,309,815.10x = 45,493,466.13 × 18,760,346.31
  4. Step 4: Simplify right side
    30,309,815.10x = 853,473,179,611,656
  5. Step 5: Solve for x
    x = 853,473,179,611,656/30,309,815.10
  6. Step 6: Final answer
    x = 28,158,310.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.