Home / 149,335,271.31-206,017,297.10-142,411,643.39

Finding the Fourth Proportional to 149,335,271.31, 206,017,297.10 and 142,411,643.39

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Solution

The fourth proportional to 149,335,271.31, 206,017,297.10 and 142,411,643.39 is: 196,465,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,335,271.31 : 206,017,297.10 = 142,411,643.39 : x
  2. Step 2: Convert to fraction form
    149,335,271.31/206,017,297.10 = 142,411,643.39/x
  3. Step 3: Cross multiply
    149,335,271.31x = 206,017,297.10 × 142,411,643.39
  4. Step 4: Simplify right side
    149,335,271.31x = 29,339,261,846,757,872
  5. Step 5: Solve for x
    x = 29,339,261,846,757,872/149,335,271.31
  6. Step 6: Final answer
    x = 196,465,721.66

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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.