Home / 21,105,008.26-31,660,065.81-7,455,361.70

Finding the Fourth Proportional to 21,105,008.26, 31,660,065.81 and 7,455,361.70

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Solution

The fourth proportional to 21,105,008.26, 31,660,065.81 and 7,455,361.70 is: 11,183,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,105,008.26 : 31,660,065.81 = 7,455,361.70 : x
  2. Step 2: Convert to fraction form
    21,105,008.26/31,660,065.81 = 7,455,361.70/x
  3. Step 3: Cross multiply
    21,105,008.26x = 31,660,065.81 × 7,455,361.70
  4. Step 4: Simplify right side
    21,105,008.26x = 236,037,242,138,503.62
  5. Step 5: Solve for x
    x = 236,037,242,138,503.62/21,105,008.26
  6. Step 6: Final answer
    x = 11,183,944.55

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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.