Home / 20,708,146.20-31,061,927.70-9,348,576.60

Finding the Fourth Proportional to 20,708,146.20, 31,061,927.70 and 9,348,576.60

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Solution

The fourth proportional to 20,708,146.20, 31,061,927.70 and 9,348,576.60 is: 14,022,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708,146.20 : 31,061,927.70 = 9,348,576.60 : x
  2. Step 2: Convert to fraction form
    20,708,146.20/31,061,927.70 = 9,348,576.60/x
  3. Step 3: Cross multiply
    20,708,146.20x = 31,061,927.70 × 9,348,576.60
  4. Step 4: Simplify right side
    20,708,146.20x = 290,384,810,447,111.81
  5. Step 5: Solve for x
    x = 290,384,810,447,111.81/20,708,146.20
  6. Step 6: Final answer
    x = 14,022,733.26

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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.