Home / 20,148,169.82-30,219,302.06-9,910,281.53

Finding the Fourth Proportional to 20,148,169.82, 30,219,302.06 and 9,910,281.53

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Solution

The fourth proportional to 20,148,169.82, 30,219,302.06 and 9,910,281.53 is: 14,863,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,169.82 : 30,219,302.06 = 9,910,281.53 : x
  2. Step 2: Convert to fraction form
    20,148,169.82/30,219,302.06 = 9,910,281.53/x
  3. Step 3: Cross multiply
    20,148,169.82x = 30,219,302.06 × 9,910,281.53
  4. Step 4: Simplify right side
    20,148,169.82x = 299,481,791,005,157.50
  5. Step 5: Solve for x
    x = 299,481,791,005,157.50/20,148,169.82
  6. Step 6: Final answer
    x = 14,863,969.96

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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.