Home / 20,304,048.10-30,456,072.15-18,886,872.10

Finding the Fourth Proportional to 20,304,048.10, 30,456,072.15 and 18,886,872.10

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Solution

The fourth proportional to 20,304,048.10, 30,456,072.15 and 18,886,872.10 is: 28,330,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304,048.10 : 30,456,072.15 = 18,886,872.10 : x
  2. Step 2: Convert to fraction form
    20,304,048.10/30,456,072.15 = 18,886,872.10/x
  3. Step 3: Cross multiply
    20,304,048.10x = 30,456,072.15 × 18,886,872.10
  4. Step 4: Simplify right side
    20,304,048.10x = 575,219,939,365,422
  5. Step 5: Solve for x
    x = 575,219,939,365,422/20,304,048.10
  6. Step 6: Final answer
    x = 28,330,308.15

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Similar ratio
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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.