Home / 21,087,046.60-31,567,584.30-12,562,995.40

Finding the Fourth Proportional to 21,087,046.60, 31,567,584.30 and 12,562,995.40

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Solution

The fourth proportional to 21,087,046.60, 31,567,584.30 and 12,562,995.40 is: 18,806,968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,087,046.60 : 31,567,584.30 = 12,562,995.40 : x
  2. Step 2: Convert to fraction form
    21,087,046.60/31,567,584.30 = 12,562,995.40/x
  3. Step 3: Cross multiply
    21,087,046.60x = 31,567,584.30 × 12,562,995.40
  4. Step 4: Simplify right side
    21,087,046.60x = 396,583,416,350,012.25
  5. Step 5: Solve for x
    x = 396,583,416,350,012.25/21,087,046.60
  6. Step 6: Final answer
    x = 18,806,968.27

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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.