Home / 131,584,003.60-197,376,005.40-85,400,784.40

Finding the Fourth Proportional to 131,584,003.60, 197,376,005.40 and 85,400,784.40

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Solution

The fourth proportional to 131,584,003.60, 197,376,005.40 and 85,400,784.40 is: 128,101,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,584,003.60 : 197,376,005.40 = 85,400,784.40 : x
  2. Step 2: Convert to fraction form
    131,584,003.60/197,376,005.40 = 85,400,784.40/x
  3. Step 3: Cross multiply
    131,584,003.60x = 197,376,005.40 × 85,400,784.40
  4. Step 4: Simplify right side
    131,584,003.60x = 16,856,065,682,898,638
  5. Step 5: Solve for x
    x = 16,856,065,682,898,638/131,584,003.60
  6. Step 6: Final answer
    x = 128,101,176.60

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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.