Home / 411,642,155.40-617,463,233.10-207,568,811.40

Finding the Fourth Proportional to 411,642,155.40, 617,463,233.10 and 207,568,811.40

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Solution

The fourth proportional to 411,642,155.40, 617,463,233.10 and 207,568,811.40 is: 311,353,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,642,155.40 : 617,463,233.10 = 207,568,811.40 : x
  2. Step 2: Convert to fraction form
    411,642,155.40/617,463,233.10 = 207,568,811.40/x
  3. Step 3: Cross multiply
    411,642,155.40x = 617,463,233.10 × 207,568,811.40
  4. Step 4: Simplify right side
    411,642,155.40x = 128,166,109,377,768,144
  5. Step 5: Solve for x
    x = 128,166,109,377,768,144/411,642,155.40
  6. Step 6: Final answer
    x = 311,353,217.10

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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.