Home / 28,243,872.20-42,373,025.40-9,074,817.20

Finding the Fourth Proportional to 28,243,872.20, 42,373,025.40 and 9,074,817.20

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Solution

The fourth proportional to 28,243,872.20, 42,373,025.40 and 9,074,817.20 is: 13,614,544.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243,872.20 : 42,373,025.40 = 9,074,817.20 : x
  2. Step 2: Convert to fraction form
    28,243,872.20/42,373,025.40 = 9,074,817.20/x
  3. Step 3: Cross multiply
    28,243,872.20x = 42,373,025.40 × 9,074,817.20
  4. Step 4: Simplify right side
    28,243,872.20x = 384,527,459,715,956.81
  5. Step 5: Solve for x
    x = 384,527,459,715,956.81/28,243,872.20
  6. Step 6: Final answer
    x = 13,614,544.67

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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.