Home / 20,235,514.35-30,353,271.53-13,778,506.20

Finding the Fourth Proportional to 20,235,514.35, 30,353,271.53 and 13,778,506.20

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Solution

The fourth proportional to 20,235,514.35, 30,353,271.53 and 13,778,506.20 is: 20,667,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235,514.35 : 30,353,271.53 = 13,778,506.20 : x
  2. Step 2: Convert to fraction form
    20,235,514.35/30,353,271.53 = 13,778,506.20/x
  3. Step 3: Cross multiply
    20,235,514.35x = 30,353,271.53 × 13,778,506.20
  4. Step 4: Simplify right side
    20,235,514.35x = 418,222,739,897,495.94
  5. Step 5: Solve for x
    x = 418,222,739,897,495.94/20,235,514.35
  6. Step 6: Final answer
    x = 20,667,759.30

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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.