Home / 31,500,967.40-47,156,972.70-18,714,890.60

Finding the Fourth Proportional to 31,500,967.40, 47,156,972.70 and 18,714,890.60

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Solution

The fourth proportional to 31,500,967.40, 47,156,972.70 and 18,714,890.60 is: 28,016,205.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,500,967.40 : 47,156,972.70 = 18,714,890.60 : x
  2. Step 2: Convert to fraction form
    31,500,967.40/47,156,972.70 = 18,714,890.60/x
  3. Step 3: Cross multiply
    31,500,967.40x = 47,156,972.70 × 18,714,890.60
  4. Step 4: Simplify right side
    31,500,967.40x = 882,537,585,107,686.75
  5. Step 5: Solve for x
    x = 882,537,585,107,686.75/31,500,967.40
  6. Step 6: Final answer
    x = 28,016,205.79

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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.