Home / 15,308,672.92-21,124,965.78-8,433,155.08

Finding the Fourth Proportional to 15,308,672.92, 21,124,965.78 and 8,433,155.08

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Solution

The fourth proportional to 15,308,672.92, 21,124,965.78 and 8,433,155.08 is: 11,637,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308,672.92 : 21,124,965.78 = 8,433,155.08 : x
  2. Step 2: Convert to fraction form
    15,308,672.92/21,124,965.78 = 8,433,155.08/x
  3. Step 3: Cross multiply
    15,308,672.92x = 21,124,965.78 × 8,433,155.08
  4. Step 4: Simplify right side
    15,308,672.92x = 178,150,112,482,433.19
  5. Step 5: Solve for x
    x = 178,150,112,482,433.19/15,308,672.92
  6. Step 6: Final answer
    x = 11,637,201.57

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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.