Home / 543,656,218.05-815,150,587.52-211,275,132.45

Finding the Fourth Proportional to 543,656,218.05, 815,150,587.52 and 211,275,132.45

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Solution

The fourth proportional to 543,656,218.05, 815,150,587.52 and 211,275,132.45 is: 316,783,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,656,218.05 : 815,150,587.52 = 211,275,132.45 : x
  2. Step 2: Convert to fraction form
    543,656,218.05/815,150,587.52 = 211,275,132.45/x
  3. Step 3: Cross multiply
    543,656,218.05x = 815,150,587.52 × 211,275,132.45
  4. Step 4: Simplify right side
    543,656,218.05x = 172,221,048,343,926,944
  5. Step 5: Solve for x
    x = 172,221,048,343,926,944/543,656,218.05
  6. Step 6: Final answer
    x = 316,783,001.14

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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.