Home / 393,890,865.78-590,308,127.22-306,557,832.18

Finding the Fourth Proportional to 393,890,865.78, 590,308,127.22 and 306,557,832.18

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Solution

The fourth proportional to 393,890,865.78, 590,308,127.22 and 306,557,832.18 is: 459,425,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,890,865.78 : 590,308,127.22 = 306,557,832.18 : x
  2. Step 2: Convert to fraction form
    393,890,865.78/590,308,127.22 = 306,557,832.18/x
  3. Step 3: Cross multiply
    393,890,865.78x = 590,308,127.22 × 306,557,832.18
  4. Step 4: Simplify right side
    393,890,865.78x = 180,963,579,798,798,848
  5. Step 5: Solve for x
    x = 180,963,579,798,798,848/393,890,865.78
  6. Step 6: Final answer
    x = 459,425,682.39

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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.