Home / 187,056,644.60-280,584,966.90-85,019,972.60

Finding the Fourth Proportional to 187,056,644.60, 280,584,966.90 and 85,019,972.60

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Solution

The fourth proportional to 187,056,644.60, 280,584,966.90 and 85,019,972.60 is: 127,529,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,056,644.60 : 280,584,966.90 = 85,019,972.60 : x
  2. Step 2: Convert to fraction form
    187,056,644.60/280,584,966.90 = 85,019,972.60/x
  3. Step 3: Cross multiply
    187,056,644.60x = 280,584,966.90 × 85,019,972.60
  4. Step 4: Simplify right side
    187,056,644.60x = 23,855,326,197,809,904
  5. Step 5: Solve for x
    x = 23,855,326,197,809,904/187,056,644.60
  6. Step 6: Final answer
    x = 127,529,958.90

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1.5x scale

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.