Home / 12,101,819.80-18,152,729.70-9,361,946.20

Finding the Fourth Proportional to 12,101,819.80, 18,152,729.70 and 9,361,946.20

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Solution

The fourth proportional to 12,101,819.80, 18,152,729.70 and 9,361,946.20 is: 14,042,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101,819.80 : 18,152,729.70 = 9,361,946.20 : x
  2. Step 2: Convert to fraction form
    12,101,819.80/18,152,729.70 = 9,361,946.20/x
  3. Step 3: Cross multiply
    12,101,819.80x = 18,152,729.70 × 9,361,946.20
  4. Step 4: Simplify right side
    12,101,819.80x = 169,944,878,834,542.12
  5. Step 5: Solve for x
    x = 169,944,878,834,542.12/12,101,819.80
  6. Step 6: Final answer
    x = 14,042,919.30

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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.