Home / 165,904,005.60-248,856,008.40-131,639,839.20

Finding the Fourth Proportional to 165,904,005.60, 248,856,008.40 and 131,639,839.20

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Solution

The fourth proportional to 165,904,005.60, 248,856,008.40 and 131,639,839.20 is: 197,459,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,904,005.60 : 248,856,008.40 = 131,639,839.20 : x
  2. Step 2: Convert to fraction form
    165,904,005.60/248,856,008.40 = 131,639,839.20/x
  3. Step 3: Cross multiply
    165,904,005.60x = 248,856,008.40 × 131,639,839.20
  4. Step 4: Simplify right side
    165,904,005.60x = 32,759,364,929,729,852
  5. Step 5: Solve for x
    x = 32,759,364,929,729,852/165,904,005.60
  6. Step 6: Final answer
    x = 197,459,758.80

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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.