Home / 457,771,523.90-686,690,380.64-191,609,548.62

Finding the Fourth Proportional to 457,771,523.90, 686,690,380.64 and 191,609,548.62

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Solution

The fourth proportional to 457,771,523.90, 686,690,380.64 and 191,609,548.62 is: 287,428,175.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,771,523.90 : 686,690,380.64 = 191,609,548.62 : x
  2. Step 2: Convert to fraction form
    457,771,523.90/686,690,380.64 = 191,609,548.62/x
  3. Step 3: Cross multiply
    457,771,523.90x = 686,690,380.64 × 191,609,548.62
  4. Step 4: Simplify right side
    457,771,523.90x = 131,576,433,872,953,488
  5. Step 5: Solve for x
    x = 131,576,433,872,953,488/457,771,523.90
  6. Step 6: Final answer
    x = 287,428,175.42

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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.