Home / 556,717,889.46-768,270,663.09-309,222,272.82

Finding the Fourth Proportional to 556,717,889.46, 768,270,663.09 and 309,222,272.82

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Solution

The fourth proportional to 556,717,889.46, 768,270,663.09 and 309,222,272.82 is: 426,726,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,717,889.46 : 768,270,663.09 = 309,222,272.82 : x
  2. Step 2: Convert to fraction form
    556,717,889.46/768,270,663.09 = 309,222,272.82/x
  3. Step 3: Cross multiply
    556,717,889.46x = 768,270,663.09 × 309,222,272.82
  4. Step 4: Simplify right side
    556,717,889.46x = 237,566,400,581,618,304
  5. Step 5: Solve for x
    x = 237,566,400,581,618,304/556,717,889.46
  6. Step 6: Final answer
    x = 426,726,722.96

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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.