Home / 191,079,194.73-286,571,403.45-81,891,982.86

Finding the Fourth Proportional to 191,079,194.73, 286,571,403.45 and 81,891,982.86

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Solution

The fourth proportional to 191,079,194.73, 286,571,403.45 and 81,891,982.86 is: 122,817,664.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,079,194.73 : 286,571,403.45 = 81,891,982.86 : x
  2. Step 2: Convert to fraction form
    191,079,194.73/286,571,403.45 = 81,891,982.86/x
  3. Step 3: Cross multiply
    191,079,194.73x = 286,571,403.45 × 81,891,982.86
  4. Step 4: Simplify right side
    191,079,194.73x = 23,467,900,459,493,544
  5. Step 5: Solve for x
    x = 23,467,900,459,493,544/191,079,194.73
  6. Step 6: Final answer
    x = 122,817,664.65

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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.