Home / 21,036,856.56-31,560,013.80-6,660,783.60

Finding the Fourth Proportional to 21,036,856.56, 31,560,013.80 and 6,660,783.60

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Solution

The fourth proportional to 21,036,856.56, 31,560,013.80 and 6,660,783.60 is: 9,992,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036,856.56 : 31,560,013.80 = 6,660,783.60 : x
  2. Step 2: Convert to fraction form
    21,036,856.56/31,560,013.80 = 6,660,783.60/x
  3. Step 3: Cross multiply
    21,036,856.56x = 31,560,013.80 × 6,660,783.60
  4. Step 4: Simplify right side
    21,036,856.56x = 210,214,422,334,813.69
  5. Step 5: Solve for x
    x = 210,214,422,334,813.69/21,036,856.56
  6. Step 6: Final answer
    x = 9,992,672.70

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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.