Home / 187,059,771.60-280,589,657.40-85,023,099.60

Finding the Fourth Proportional to 187,059,771.60, 280,589,657.40 and 85,023,099.60

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Solution

The fourth proportional to 187,059,771.60, 280,589,657.40 and 85,023,099.60 is: 127,534,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,059,771.60 : 280,589,657.40 = 85,023,099.60 : x
  2. Step 2: Convert to fraction form
    187,059,771.60/280,589,657.40 = 85,023,099.60/x
  3. Step 3: Cross multiply
    187,059,771.60x = 280,589,657.40 × 85,023,099.60
  4. Step 4: Simplify right side
    187,059,771.60x = 23,856,602,387,850,072
  5. Step 5: Solve for x
    x = 23,856,602,387,850,072/187,059,771.60
  6. Step 6: Final answer
    x = 127,534,649.40

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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.