Home / 42,685,861.30-64,008,857.85-15,388,558.90

Finding the Fourth Proportional to 42,685,861.30, 64,008,857.85 and 15,388,558.90

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Solution

The fourth proportional to 42,685,861.30, 64,008,857.85 and 15,388,558.90 is: 23,075,651.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,685,861.30 : 64,008,857.85 = 15,388,558.90 : x
  2. Step 2: Convert to fraction form
    42,685,861.30/64,008,857.85 = 15,388,558.90/x
  3. Step 3: Cross multiply
    42,685,861.30x = 64,008,857.85 × 15,388,558.90
  4. Step 4: Simplify right side
    42,685,861.30x = 985,004,079,146,452.38
  5. Step 5: Solve for x
    x = 985,004,079,146,452.38/42,685,861.30
  6. Step 6: Final answer
    x = 23,075,651.96

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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.