Home / 18,706,918.68-28,037,775.78-9,107,913.24

Finding the Fourth Proportional to 18,706,918.68, 28,037,775.78 and 9,107,913.24

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Solution

The fourth proportional to 18,706,918.68, 28,037,775.78 and 9,107,913.24 is: 13,650,865.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706,918.68 : 28,037,775.78 = 9,107,913.24 : x
  2. Step 2: Convert to fraction form
    18,706,918.68/28,037,775.78 = 9,107,913.24/x
  3. Step 3: Cross multiply
    18,706,918.68x = 28,037,775.78 × 9,107,913.24
  4. Step 4: Simplify right side
    18,706,918.68x = 255,365,629,246,813.34
  5. Step 5: Solve for x
    x = 255,365,629,246,813.34/18,706,918.68
  6. Step 6: Final answer
    x = 13,650,865.42

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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.