Home / 258,660,905.60-387,991,358.40-166,827,900.80

Finding the Fourth Proportional to 258,660,905.60, 387,991,358.40 and 166,827,900.80

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Solution

The fourth proportional to 258,660,905.60, 387,991,358.40 and 166,827,900.80 is: 250,241,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,660,905.60 : 387,991,358.40 = 166,827,900.80 : x
  2. Step 2: Convert to fraction form
    258,660,905.60/387,991,358.40 = 166,827,900.80/x
  3. Step 3: Cross multiply
    258,660,905.60x = 387,991,358.40 × 166,827,900.80
  4. Step 4: Simplify right side
    258,660,905.60x = 64,727,783,850,412,448
  5. Step 5: Solve for x
    x = 64,727,783,850,412,448/258,660,905.60
  6. Step 6: Final answer
    x = 250,241,851.20

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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.