Home / 13,353,885.80-20,051,823.90-7,685,181.80

Finding the Fourth Proportional to 13,353,885.80, 20,051,823.90 and 7,685,181.80

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Solution

The fourth proportional to 13,353,885.80, 20,051,823.90 and 7,685,181.80 is: 11,539,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353,885.80 : 20,051,823.90 = 7,685,181.80 : x
  2. Step 2: Convert to fraction form
    13,353,885.80/20,051,823.90 = 7,685,181.80/x
  3. Step 3: Cross multiply
    13,353,885.80x = 20,051,823.90 × 7,685,181.80
  4. Step 4: Simplify right side
    13,353,885.80x = 154,101,912,093,085
  5. Step 5: Solve for x
    x = 154,101,912,093,085/13,353,885.80
  6. Step 6: Final answer
    x = 11,539,855.47

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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.