Home / 285,486,054.73-393,970,755.49-161,726,731.85

Finding the Fourth Proportional to 285,486,054.73, 393,970,755.49 and 161,726,731.85

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Solution

The fourth proportional to 285,486,054.73, 393,970,755.49 and 161,726,731.85 is: 223,182,889.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,486,054.73 : 393,970,755.49 = 161,726,731.85 : x
  2. Step 2: Convert to fraction form
    285,486,054.73/393,970,755.49 = 161,726,731.85/x
  3. Step 3: Cross multiply
    285,486,054.73x = 393,970,755.49 × 161,726,731.85
  4. Step 4: Simplify right side
    285,486,054.73x = 63,715,602,730,453,752
  5. Step 5: Solve for x
    x = 63,715,602,730,453,752/285,486,054.73
  6. Step 6: Final answer
    x = 223,182,889.94

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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.