Home / 168,236,431.20-252,378,266.40-53,208,979.20

Finding the Fourth Proportional to 168,236,431.20, 252,378,266.40 and 53,208,979.20

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Solution

The fourth proportional to 168,236,431.20, 252,378,266.40 and 53,208,979.20 is: 79,820,939.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,236,431.20 : 252,378,266.40 = 53,208,979.20 : x
  2. Step 2: Convert to fraction form
    168,236,431.20/252,378,266.40 = 53,208,979.20/x
  3. Step 3: Cross multiply
    168,236,431.20x = 252,378,266.40 × 53,208,979.20
  4. Step 4: Simplify right side
    168,236,431.20x = 13,428,789,927,409,660
  5. Step 5: Solve for x
    x = 13,428,789,927,409,660/168,236,431.20
  6. Step 6: Final answer
    x = 79,820,939.09

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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.