Home / 12,539,981.40-18,809,972.10-10,626,793.80

Finding the Fourth Proportional to 12,539,981.40, 18,809,972.10 and 10,626,793.80

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Solution

The fourth proportional to 12,539,981.40, 18,809,972.10 and 10,626,793.80 is: 15,940,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539,981.40 : 18,809,972.10 = 10,626,793.80 : x
  2. Step 2: Convert to fraction form
    12,539,981.40/18,809,972.10 = 10,626,793.80/x
  3. Step 3: Cross multiply
    12,539,981.40x = 18,809,972.10 × 10,626,793.80
  4. Step 4: Simplify right side
    12,539,981.40x = 199,889,694,890,453
  5. Step 5: Solve for x
    x = 199,889,694,890,453/12,539,981.40
  6. Step 6: Final answer
    x = 15,940,190.70

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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.