Home / 20,702,742.98-28,569,898.62-12,006,071.84

Finding the Fourth Proportional to 20,702,742.98, 28,569,898.62 and 12,006,071.84

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Solution

The fourth proportional to 20,702,742.98, 28,569,898.62 and 12,006,071.84 is: 16,568,444.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,742.98 : 28,569,898.62 = 12,006,071.84 : x
  2. Step 2: Convert to fraction form
    20,702,742.98/28,569,898.62 = 12,006,071.84/x
  3. Step 3: Cross multiply
    20,702,742.98x = 28,569,898.62 × 12,006,071.84
  4. Step 4: Simplify right side
    20,702,742.98x = 343,012,255,293,236.88
  5. Step 5: Solve for x
    x = 343,012,255,293,236.88/20,702,742.98
  6. Step 6: Final answer
    x = 16,568,444.85

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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.