Home / 21,037,667.76-31,557,400.74-8,260,941.60

Finding the Fourth Proportional to 21,037,667.76, 31,557,400.74 and 8,260,941.60

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Solution

The fourth proportional to 21,037,667.76, 31,557,400.74 and 8,260,941.60 is: 12,391,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,037,667.76 : 31,557,400.74 = 8,260,941.60 : x
  2. Step 2: Convert to fraction form
    21,037,667.76/31,557,400.74 = 8,260,941.60/x
  3. Step 3: Cross multiply
    21,037,667.76x = 31,557,400.74 × 8,260,941.60
  4. Step 4: Simplify right side
    21,037,667.76x = 260,693,844,560,936.75
  5. Step 5: Solve for x
    x = 260,693,844,560,936.75/21,037,667.76
  6. Step 6: Final answer
    x = 12,391,765.45

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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.