Home / 281,026,643.76-387,857,354.02-161,926,434.15

Finding the Fourth Proportional to 281,026,643.76, 387,857,354.02 and 161,926,434.15

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Solution

The fourth proportional to 281,026,643.76, 387,857,354.02 and 161,926,434.15 is: 223,481,864.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,026,643.76 : 387,857,354.02 = 161,926,434.15 : x
  2. Step 2: Convert to fraction form
    281,026,643.76/387,857,354.02 = 161,926,434.15/x
  3. Step 3: Cross multiply
    281,026,643.76x = 387,857,354.02 × 161,926,434.15
  4. Step 4: Simplify right side
    281,026,643.76x = 62,804,358,297,178,144
  5. Step 5: Solve for x
    x = 62,804,358,297,178,144/281,026,643.76
  6. Step 6: Final answer
    x = 223,481,864.41

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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.