Home / 149,335,272.78-206,017,299.13-142,411,644.87

Finding the Fourth Proportional to 149,335,272.78, 206,017,299.13 and 142,411,644.87

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Solution

The fourth proportional to 149,335,272.78, 206,017,299.13 and 142,411,644.87 is: 196,465,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,335,272.78 : 206,017,299.13 = 142,411,644.87 : x
  2. Step 2: Convert to fraction form
    149,335,272.78/206,017,299.13 = 142,411,644.87/x
  3. Step 3: Cross multiply
    149,335,272.78x = 206,017,299.13 × 142,411,644.87
  4. Step 4: Simplify right side
    149,335,272.78x = 29,339,262,440,805,240
  5. Step 5: Solve for x
    x = 29,339,262,440,805,240/149,335,272.78
  6. Step 6: Final answer
    x = 196,465,723.70

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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.