Home / 28,233,489-42,333,148.98-12,668,464.20

Finding the Fourth Proportional to 28,233,489, 42,333,148.98 and 12,668,464.20

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Solution

The fourth proportional to 28,233,489, 42,333,148.98 and 12,668,464.20 is: 18,995,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233,489 : 42,333,148.98 = 12,668,464.20 : x
  2. Step 2: Convert to fraction form
    28,233,489/42,333,148.98 = 12,668,464.20/x
  3. Step 3: Cross multiply
    28,233,489x = 42,333,148.98 × 12,668,464.20
  4. Step 4: Simplify right side
    28,233,489x = 536,295,982,326,396.44
  5. Step 5: Solve for x
    x = 536,295,982,326,396.44/28,233,489
  6. Step 6: Final answer
    x = 18,995,030.42

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1.5x scale

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.