Home / 13,769,154.90-20,653,732.35-12,281,120.10

Finding the Fourth Proportional to 13,769,154.90, 20,653,732.35 and 12,281,120.10

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Solution

The fourth proportional to 13,769,154.90, 20,653,732.35 and 12,281,120.10 is: 18,421,680.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769,154.90 : 20,653,732.35 = 12,281,120.10 : x
  2. Step 2: Convert to fraction form
    13,769,154.90/20,653,732.35 = 12,281,120.10/x
  3. Step 3: Cross multiply
    13,769,154.90x = 20,653,732.35 × 12,281,120.10
  4. Step 4: Simplify right side
    13,769,154.90x = 253,650,967,503,605.25
  5. Step 5: Solve for x
    x = 253,650,967,503,605.25/13,769,154.90
  6. Step 6: Final answer
    x = 18,421,680.15

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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.