Home / 207,918,005.76-286,923,409.92-115,096,550.40

Finding the Fourth Proportional to 207,918,005.76, 286,923,409.92 and 115,096,550.40

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Solution

The fourth proportional to 207,918,005.76, 286,923,409.92 and 115,096,550.40 is: 158,831,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,918,005.76 : 286,923,409.92 = 115,096,550.40 : x
  2. Step 2: Convert to fraction form
    207,918,005.76/286,923,409.92 = 115,096,550.40/x
  3. Step 3: Cross multiply
    207,918,005.76x = 286,923,409.92 × 115,096,550.40
  4. Step 4: Simplify right side
    207,918,005.76x = 33,023,894,710,797,144
  5. Step 5: Solve for x
    x = 33,023,894,710,797,144/207,918,005.76
  6. Step 6: Final answer
    x = 158,831,336.37

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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.