Home / 513,219,748.20-768,317,967.90-483,322,583.40

Finding the Fourth Proportional to 513,219,748.20, 768,317,967.90 and 483,322,583.40

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Solution

The fourth proportional to 513,219,748.20, 768,317,967.90 and 483,322,583.40 is: 723,560,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,219,748.20 : 768,317,967.90 = 483,322,583.40 : x
  2. Step 2: Convert to fraction form
    513,219,748.20/768,317,967.90 = 483,322,583.40/x
  3. Step 3: Cross multiply
    513,219,748.20x = 768,317,967.90 × 483,322,583.40
  4. Step 4: Simplify right side
    513,219,748.20x = 371,345,425,118,066,240
  5. Step 5: Solve for x
    x = 371,345,425,118,066,240/513,219,748.20
  6. Step 6: Final answer
    x = 723,560,280.80

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1.5x scale

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.