Home / 13,468,079.80-20,202,119.70-9,429,128.20

Finding the Fourth Proportional to 13,468,079.80, 20,202,119.70 and 9,429,128.20

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Solution

The fourth proportional to 13,468,079.80, 20,202,119.70 and 9,429,128.20 is: 14,143,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,468,079.80 : 20,202,119.70 = 9,429,128.20 : x
  2. Step 2: Convert to fraction form
    13,468,079.80/20,202,119.70 = 9,429,128.20/x
  3. Step 3: Cross multiply
    13,468,079.80x = 20,202,119.70 × 9,429,128.20
  4. Step 4: Simplify right side
    13,468,079.80x = 190,488,376,563,045.53
  5. Step 5: Solve for x
    x = 190,488,376,563,045.53/13,468,079.80
  6. Step 6: Final answer
    x = 14,143,692.30

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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.