Home / 168,785,107.20-253,177,660.80-153,164,678.40

Finding the Fourth Proportional to 168,785,107.20, 253,177,660.80 and 153,164,678.40

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Solution

The fourth proportional to 168,785,107.20, 253,177,660.80 and 153,164,678.40 is: 229,747,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,785,107.20 : 253,177,660.80 = 153,164,678.40 : x
  2. Step 2: Convert to fraction form
    168,785,107.20/253,177,660.80 = 153,164,678.40/x
  3. Step 3: Cross multiply
    168,785,107.20x = 253,177,660.80 × 153,164,678.40
  4. Step 4: Simplify right side
    168,785,107.20x = 38,777,874,994,496,288
  5. Step 5: Solve for x
    x = 38,777,874,994,496,288/168,785,107.20
  6. Step 6: Final answer
    x = 229,747,017.60

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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.