Home / 13,689,000.70-20,533,501.05-8,303,731.90

Finding the Fourth Proportional to 13,689,000.70, 20,533,501.05 and 8,303,731.90

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Solution

The fourth proportional to 13,689,000.70, 20,533,501.05 and 8,303,731.90 is: 12,455,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689,000.70 : 20,533,501.05 = 8,303,731.90 : x
  2. Step 2: Convert to fraction form
    13,689,000.70/20,533,501.05 = 8,303,731.90/x
  3. Step 3: Cross multiply
    13,689,000.70x = 20,533,501.05 × 8,303,731.90
  4. Step 4: Simplify right side
    13,689,000.70x = 170,504,687,687,568.50
  5. Step 5: Solve for x
    x = 170,504,687,687,568.50/13,689,000.70
  6. Step 6: Final answer
    x = 12,455,597.85

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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.