Home / 31,347,013.60-47,020,520.40-8,317,903.60

Finding the Fourth Proportional to 31,347,013.60, 47,020,520.40 and 8,317,903.60

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Solution

The fourth proportional to 31,347,013.60, 47,020,520.40 and 8,317,903.60 is: 12,476,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347,013.60 : 47,020,520.40 = 8,317,903.60 : x
  2. Step 2: Convert to fraction form
    31,347,013.60/47,020,520.40 = 8,317,903.60/x
  3. Step 3: Cross multiply
    31,347,013.60x = 47,020,520.40 × 8,317,903.60
  4. Step 4: Simplify right side
    31,347,013.60x = 391,112,155,909,033.44
  5. Step 5: Solve for x
    x = 391,112,155,909,033.44/31,347,013.60
  6. Step 6: Final answer
    x = 12,476,855.40

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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.