Home / 512,531,486.89-769,077,108.25-217,380,698.12

Finding the Fourth Proportional to 512,531,486.89, 769,077,108.25 and 217,380,698.12

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Solution

The fourth proportional to 512,531,486.89, 769,077,108.25 and 217,380,698.12 is: 326,189,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,531,486.89 : 769,077,108.25 = 217,380,698.12 : x
  2. Step 2: Convert to fraction form
    512,531,486.89/769,077,108.25 = 217,380,698.12/x
  3. Step 3: Cross multiply
    512,531,486.89x = 769,077,108.25 × 217,380,698.12
  4. Step 4: Simplify right side
    512,531,486.89x = 167,182,518,700,875,040
  5. Step 5: Solve for x
    x = 167,182,518,700,875,040/512,531,486.89
  6. Step 6: Final answer
    x = 326,189,752.20

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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.