Home / 666,118,138.66-919,206,613.46-364,645,129.91

Finding the Fourth Proportional to 666,118,138.66, 919,206,613.46 and 364,645,129.91

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Solution

The fourth proportional to 666,118,138.66, 919,206,613.46 and 364,645,129.91 is: 503,190,343.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,118,138.66 : 919,206,613.46 = 364,645,129.91 : x
  2. Step 2: Convert to fraction form
    666,118,138.66/919,206,613.46 = 364,645,129.91/x
  3. Step 3: Cross multiply
    666,118,138.66x = 919,206,613.46 × 364,645,129.91
  4. Step 4: Simplify right side
    666,118,138.66x = 335,184,214,975,568,384
  5. Step 5: Solve for x
    x = 335,184,214,975,568,384/666,118,138.66
  6. Step 6: Final answer
    x = 503,190,343.46

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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.