Home / 28,123,284.72-38,809,783.44-16,521,905.76

Finding the Fourth Proportional to 28,123,284.72, 38,809,783.44 and 16,521,905.76

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Solution

The fourth proportional to 28,123,284.72, 38,809,783.44 and 16,521,905.76 is: 22,800,024.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123,284.72 : 38,809,783.44 = 16,521,905.76 : x
  2. Step 2: Convert to fraction form
    28,123,284.72/38,809,783.44 = 16,521,905.76/x
  3. Step 3: Cross multiply
    28,123,284.72x = 38,809,783.44 × 16,521,905.76
  4. Step 4: Simplify right side
    28,123,284.72x = 641,211,584,561,688.62
  5. Step 5: Solve for x
    x = 641,211,584,561,688.62/28,123,284.72
  6. Step 6: Final answer
    x = 22,800,024.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.