Home / 18,982,663.48-28,484,361-8,051,152.78

Finding the Fourth Proportional to 18,982,663.48, 28,484,361 and 8,051,152.78

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Solution

The fourth proportional to 18,982,663.48, 28,484,361 and 8,051,152.78 is: 12,081,125.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982,663.48 : 28,484,361 = 8,051,152.78 : x
  2. Step 2: Convert to fraction form
    18,982,663.48/28,484,361 = 8,051,152.78/x
  3. Step 3: Cross multiply
    18,982,663.48x = 28,484,361 × 8,051,152.78
  4. Step 4: Simplify right side
    18,982,663.48x = 229,331,942,251,673.59
  5. Step 5: Solve for x
    x = 229,331,942,251,673.59/18,982,663.48
  6. Step 6: Final answer
    x = 12,081,125.63

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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.