Home / 12,114,769.20-18,159,712.20-7,063,479.60

Finding the Fourth Proportional to 12,114,769.20, 18,159,712.20 and 7,063,479.60

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Solution

The fourth proportional to 12,114,769.20, 18,159,712.20 and 7,063,479.60 is: 10,587,965.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114,769.20 : 18,159,712.20 = 7,063,479.60 : x
  2. Step 2: Convert to fraction form
    12,114,769.20/18,159,712.20 = 7,063,479.60/x
  3. Step 3: Cross multiply
    12,114,769.20x = 18,159,712.20 × 7,063,479.60
  4. Step 4: Simplify right side
    12,114,769.20x = 128,270,756,666,571.11
  5. Step 5: Solve for x
    x = 128,270,756,666,571.11/12,114,769.20
  6. Step 6: Final answer
    x = 10,587,965.36

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1.5x scale

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.