Home / 20,956,676.40-28,916,783.96-12,132,984.32

Finding the Fourth Proportional to 20,956,676.40, 28,916,783.96 and 12,132,984.32

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Solution

The fourth proportional to 20,956,676.40, 28,916,783.96 and 12,132,984.32 is: 16,741,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,676.40 : 28,916,783.96 = 12,132,984.32 : x
  2. Step 2: Convert to fraction form
    20,956,676.40/28,916,783.96 = 12,132,984.32/x
  3. Step 3: Cross multiply
    20,956,676.40x = 28,916,783.96 × 12,132,984.32
  4. Step 4: Simplify right side
    20,956,676.40x = 350,846,886,371,507.50
  5. Step 5: Solve for x
    x = 350,846,886,371,507.50/20,956,676.40
  6. Step 6: Final answer
    x = 16,741,532.85

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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.