Home / 285,138,566.88-393,423,780.02-161,379,240.36

Finding the Fourth Proportional to 285,138,566.88, 393,423,780.02 and 161,379,240.36

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Solution

The fourth proportional to 285,138,566.88, 393,423,780.02 and 161,379,240.36 is: 222,665,181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,138,566.88 : 393,423,780.02 = 161,379,240.36 : x
  2. Step 2: Convert to fraction form
    285,138,566.88/393,423,780.02 = 161,379,240.36/x
  3. Step 3: Cross multiply
    285,138,566.88x = 393,423,780.02 × 161,379,240.36
  4. Step 4: Simplify right side
    285,138,566.88x = 63,490,430,759,590,792
  5. Step 5: Solve for x
    x = 63,490,430,759,590,792/285,138,566.88
  6. Step 6: Final answer
    x = 222,665,181.54

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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.