Home / 156,694,971.07-216,011,145.69-109,505,532.15

Finding the Fourth Proportional to 156,694,971.07, 216,011,145.69 and 109,505,532.15

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Solution

The fourth proportional to 156,694,971.07, 216,011,145.69 and 109,505,532.15 is: 150,958,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,694,971.07 : 216,011,145.69 = 109,505,532.15 : x
  2. Step 2: Convert to fraction form
    156,694,971.07/216,011,145.69 = 109,505,532.15/x
  3. Step 3: Cross multiply
    156,694,971.07x = 216,011,145.69 × 109,505,532.15
  4. Step 4: Simplify right side
    156,694,971.07x = 23,654,415,459,422,340
  5. Step 5: Solve for x
    x = 23,654,415,459,422,340/156,694,971.07
  6. Step 6: Final answer
    x = 150,958,357.49

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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.