Home / 11,028,897.60-16,543,346.40-7,981,969.20

Finding the Fourth Proportional to 11,028,897.60, 16,543,346.40 and 7,981,969.20

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Solution

The fourth proportional to 11,028,897.60, 16,543,346.40 and 7,981,969.20 is: 11,972,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028,897.60 : 16,543,346.40 = 7,981,969.20 : x
  2. Step 2: Convert to fraction form
    11,028,897.60/16,543,346.40 = 7,981,969.20/x
  3. Step 3: Cross multiply
    11,028,897.60x = 16,543,346.40 × 7,981,969.20
  4. Step 4: Simplify right side
    11,028,897.60x = 132,048,481,429,730.89
  5. Step 5: Solve for x
    x = 132,048,481,429,730.89/11,028,897.60
  6. Step 6: Final answer
    x = 11,972,953.80

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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.