Home / 411,870,319.20-617,505,937.56-193,408,089.84

Finding the Fourth Proportional to 411,870,319.20, 617,505,937.56 and 193,408,089.84

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Solution

The fourth proportional to 411,870,319.20, 617,505,937.56 and 193,408,089.84 is: 289,971,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,870,319.20 : 617,505,937.56 = 193,408,089.84 : x
  2. Step 2: Convert to fraction form
    411,870,319.20/617,505,937.56 = 193,408,089.84/x
  3. Step 3: Cross multiply
    411,870,319.20x = 617,505,937.56 × 193,408,089.84
  4. Step 4: Simplify right side
    411,870,319.20x = 119,430,643,848,337,904
  5. Step 5: Solve for x
    x = 119,430,643,848,337,904/411,870,319.20
  6. Step 6: Final answer
    x = 289,971,474.71

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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.