Home / 513,216,286.20-768,312,774.90-483,319,121.40

Finding the Fourth Proportional to 513,216,286.20, 768,312,774.90 and 483,319,121.40

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Solution

The fourth proportional to 513,216,286.20, 768,312,774.90 and 483,319,121.40 is: 723,555,088.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,216,286.20 : 768,312,774.90 = 483,319,121.40 : x
  2. Step 2: Convert to fraction form
    513,216,286.20/768,312,774.90 = 483,319,121.40/x
  3. Step 3: Cross multiply
    513,216,286.20x = 768,312,774.90 × 483,319,121.40
  4. Step 4: Simplify right side
    513,216,286.20x = 371,340,255,325,063,936
  5. Step 5: Solve for x
    x = 371,340,255,325,063,936/513,216,286.20
  6. Step 6: Final answer
    x = 723,555,088.39

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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.