Home / 12,112,600.80-18,168,901.20-9,425,215.20

Finding the Fourth Proportional to 12,112,600.80, 18,168,901.20 and 9,425,215.20

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Solution

The fourth proportional to 12,112,600.80, 18,168,901.20 and 9,425,215.20 is: 14,137,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,600.80 : 18,168,901.20 = 9,425,215.20 : x
  2. Step 2: Convert to fraction form
    12,112,600.80/18,168,901.20 = 9,425,215.20/x
  3. Step 3: Cross multiply
    12,112,600.80x = 18,168,901.20 × 9,425,215.20
  4. Step 4: Simplify right side
    12,112,600.80x = 171,245,803,757,538.22
  5. Step 5: Solve for x
    x = 171,245,803,757,538.22/12,112,600.80
  6. Step 6: Final answer
    x = 14,137,822.80

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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.