Home / 30,286,014.30-45,429,021.45-18,192,779.10

Finding the Fourth Proportional to 30,286,014.30, 45,429,021.45 and 18,192,779.10

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Solution

The fourth proportional to 30,286,014.30, 45,429,021.45 and 18,192,779.10 is: 27,289,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286,014.30 : 45,429,021.45 = 18,192,779.10 : x
  2. Step 2: Convert to fraction form
    30,286,014.30/45,429,021.45 = 18,192,779.10/x
  3. Step 3: Cross multiply
    30,286,014.30x = 45,429,021.45 × 18,192,779.10
  4. Step 4: Simplify right side
    30,286,014.30x = 826,480,151,969,011.88
  5. Step 5: Solve for x
    x = 826,480,151,969,011.88/30,286,014.30
  6. Step 6: Final answer
    x = 27,289,168.65

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Double scale
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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.