Home / 12,481,281.20-18,721,921.80-11,064,105.20

Finding the Fourth Proportional to 12,481,281.20, 18,721,921.80 and 11,064,105.20

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Solution

The fourth proportional to 12,481,281.20, 18,721,921.80 and 11,064,105.20 is: 16,596,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,281.20 : 18,721,921.80 = 11,064,105.20 : x
  2. Step 2: Convert to fraction form
    12,481,281.20/18,721,921.80 = 11,064,105.20/x
  3. Step 3: Cross multiply
    12,481,281.20x = 18,721,921.80 × 11,064,105.20
  4. Step 4: Simplify right side
    12,481,281.20x = 207,141,312,341,373.34
  5. Step 5: Solve for x
    x = 207,141,312,341,373.34/12,481,281.20
  6. Step 6: Final answer
    x = 16,596,157.80

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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.