Home / 28,243,870.20-42,373,022.40-9,074,815.20

Finding the Fourth Proportional to 28,243,870.20, 42,373,022.40 and 9,074,815.20

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Solution

The fourth proportional to 28,243,870.20, 42,373,022.40 and 9,074,815.20 is: 13,614,541.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243,870.20 : 42,373,022.40 = 9,074,815.20 : x
  2. Step 2: Convert to fraction form
    28,243,870.20/42,373,022.40 = 9,074,815.20/x
  3. Step 3: Cross multiply
    28,243,870.20x = 42,373,022.40 × 9,074,815.20
  4. Step 4: Simplify right side
    28,243,870.20x = 384,527,347,745,460.44
  5. Step 5: Solve for x
    x = 384,527,347,745,460.44/28,243,870.20
  6. Step 6: Final answer
    x = 13,614,541.67

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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.