Home / 14,649,690.88-20,215,587.96-8,123,078.72

Finding the Fourth Proportional to 14,649,690.88, 20,215,587.96 and 8,123,078.72

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Solution

The fourth proportional to 14,649,690.88, 20,215,587.96 and 8,123,078.72 is: 11,209,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649,690.88 : 20,215,587.96 = 8,123,078.72 : x
  2. Step 2: Convert to fraction form
    14,649,690.88/20,215,587.96 = 8,123,078.72/x
  3. Step 3: Cross multiply
    14,649,690.88x = 20,215,587.96 × 8,123,078.72
  4. Step 4: Simplify right side
    14,649,690.88x = 164,212,812,420,703.19
  5. Step 5: Solve for x
    x = 164,212,812,420,703.19/14,649,690.88
  6. Step 6: Final answer
    x = 11,209,302.21

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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.