Home / 385,595,004-578,391,244.42-139,951,311.42

Finding the Fourth Proportional to 385,595,004, 578,391,244.42 and 139,951,311.42

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Solution

The fourth proportional to 385,595,004, 578,391,244.42 and 139,951,311.42 is: 209,926,509.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,595,004 : 578,391,244.42 = 139,951,311.42 : x
  2. Step 2: Convert to fraction form
    385,595,004/578,391,244.42 = 139,951,311.42/x
  3. Step 3: Cross multiply
    385,595,004x = 578,391,244.42 × 139,951,311.42
  4. Step 4: Simplify right side
    385,595,004x = 80,946,613,170,424,736
  5. Step 5: Solve for x
    x = 80,946,613,170,424,736/385,595,004
  6. Step 6: Final answer
    x = 209,926,509.24

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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.