Home / 12,216,000.30-18,324,000.45-11,656,128.30

Finding the Fourth Proportional to 12,216,000.30, 18,324,000.45 and 11,656,128.30

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Solution

The fourth proportional to 12,216,000.30, 18,324,000.45 and 11,656,128.30 is: 17,484,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216,000.30 : 18,324,000.45 = 11,656,128.30 : x
  2. Step 2: Convert to fraction form
    12,216,000.30/18,324,000.45 = 11,656,128.30/x
  3. Step 3: Cross multiply
    12,216,000.30x = 18,324,000.45 × 11,656,128.30
  4. Step 4: Simplify right side
    12,216,000.30x = 213,586,900,214,457.75
  5. Step 5: Solve for x
    x = 213,586,900,214,457.75/12,216,000.30
  6. Step 6: Final answer
    x = 17,484,192.45

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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.