Home / 13,470,874.80-20,206,312.20-9,219,346.80

Finding the Fourth Proportional to 13,470,874.80, 20,206,312.20 and 9,219,346.80

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Solution

The fourth proportional to 13,470,874.80, 20,206,312.20 and 9,219,346.80 is: 13,829,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470,874.80 : 20,206,312.20 = 9,219,346.80 : x
  2. Step 2: Convert to fraction form
    13,470,874.80/20,206,312.20 = 9,219,346.80/x
  3. Step 3: Cross multiply
    13,470,874.80x = 20,206,312.20 × 9,219,346.80
  4. Step 4: Simplify right side
    13,470,874.80x = 186,288,999,720,870.97
  5. Step 5: Solve for x
    x = 186,288,999,720,870.97/13,470,874.80
  6. Step 6: Final answer
    x = 13,829,020.20

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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.