Home / 15,790,380.60-21,781,629.72-9,506,533.62

Finding the Fourth Proportional to 15,790,380.60, 21,781,629.72 and 9,506,533.62

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Solution

The fourth proportional to 15,790,380.60, 21,781,629.72 and 9,506,533.62 is: 13,113,540.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790,380.60 : 21,781,629.72 = 9,506,533.62 : x
  2. Step 2: Convert to fraction form
    15,790,380.60/21,781,629.72 = 9,506,533.62/x
  3. Step 3: Cross multiply
    15,790,380.60x = 21,781,629.72 × 9,506,533.62
  4. Step 4: Simplify right side
    15,790,380.60x = 207,067,795,231,571.16
  5. Step 5: Solve for x
    x = 207,067,795,231,571.16/15,790,380.60
  6. Step 6: Final answer
    x = 13,113,540.48

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1.5x scale

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.