Home / 168,502,429.20-252,753,643.80-137,891,427.60

Finding the Fourth Proportional to 168,502,429.20, 252,753,643.80 and 137,891,427.60

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Solution

The fourth proportional to 168,502,429.20, 252,753,643.80 and 137,891,427.60 is: 206,837,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,502,429.20 : 252,753,643.80 = 137,891,427.60 : x
  2. Step 2: Convert to fraction form
    168,502,429.20/252,753,643.80 = 137,891,427.60/x
  3. Step 3: Cross multiply
    168,502,429.20x = 252,753,643.80 × 137,891,427.60
  4. Step 4: Simplify right side
    168,502,429.20x = 34,852,560,774,683,888
  5. Step 5: Solve for x
    x = 34,852,560,774,683,888/168,502,429.20
  6. Step 6: Final answer
    x = 206,837,141.40

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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.