Home / 513,858,221,140.20-709,082,771,366.64-297,098,322,902.60

Finding the Fourth Proportional to 513,858,221,140.20, 709,082,771,366.64 and 297,098,322,902.60

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Solution

The fourth proportional to 513,858,221,140.20, 709,082,771,366.64 and 297,098,322,902.60 is: 409,971,648,803.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,858,221,140.20 : 709,082,771,366.64 = 297,098,322,902.60 : x
  2. Step 2: Convert to fraction form
    513,858,221,140.20/709,082,771,366.64 = 297,098,322,902.60/x
  3. Step 3: Cross multiply
    513,858,221,140.20x = 709,082,771,366.64 × 297,098,322,902.60
  4. Step 4: Simplify right side
    513,858,221,140.20x = 210,667,302,172,156,500,115,456
  5. Step 5: Solve for x
    x = 210,667,302,172,156,500,115,456/513,858,221,140.20
  6. Step 6: Final answer
    x = 409,971,648,803.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.