Home / 31,508,885.40-47,263,328.10-18,722,808.60

Finding the Fourth Proportional to 31,508,885.40, 47,263,328.10 and 18,722,808.60

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Solution

The fourth proportional to 31,508,885.40, 47,263,328.10 and 18,722,808.60 is: 28,084,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,508,885.40 : 47,263,328.10 = 18,722,808.60 : x
  2. Step 2: Convert to fraction form
    31,508,885.40/47,263,328.10 = 18,722,808.60/x
  3. Step 3: Cross multiply
    31,508,885.40x = 47,263,328.10 × 18,722,808.60
  4. Step 4: Simplify right side
    31,508,885.40x = 884,902,245,815,301.75
  5. Step 5: Solve for x
    x = 884,902,245,815,301.75/31,508,885.40
  6. Step 6: Final answer
    x = 28,084,212.90

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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.