Home / 140,340,381.45-193,659,894.74-81,598,879.13

Finding the Fourth Proportional to 140,340,381.45, 193,659,894.74 and 81,598,879.13

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Solution

The fourth proportional to 140,340,381.45, 193,659,894.74 and 81,598,879.13 is: 112,600,736.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,340,381.45 : 193,659,894.74 = 81,598,879.13 : x
  2. Step 2: Convert to fraction form
    140,340,381.45/193,659,894.74 = 81,598,879.13/x
  3. Step 3: Cross multiply
    140,340,381.45x = 193,659,894.74 × 81,598,879.13
  4. Step 4: Simplify right side
    140,340,381.45x = 15,802,430,341,841,490
  5. Step 5: Solve for x
    x = 15,802,430,341,841,490/140,340,381.45
  6. Step 6: Final answer
    x = 112,600,736.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.