Home / 168,784,012.60-253,176,018.90-161,981,567.80

Finding the Fourth Proportional to 168,784,012.60, 253,176,018.90 and 161,981,567.80

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Solution

The fourth proportional to 168,784,012.60, 253,176,018.90 and 161,981,567.80 is: 242,972,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,784,012.60 : 253,176,018.90 = 161,981,567.80 : x
  2. Step 2: Convert to fraction form
    168,784,012.60/253,176,018.90 = 161,981,567.80/x
  3. Step 3: Cross multiply
    168,784,012.60x = 253,176,018.90 × 161,981,567.80
  4. Step 4: Simplify right side
    168,784,012.60x = 41,009,848,470,784,432
  5. Step 5: Solve for x
    x = 41,009,848,470,784,432/168,784,012.60
  6. Step 6: Final answer
    x = 242,972,351.70

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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.