Home / 12,429,870.20-18,644,805.30-3,912,817.40

Finding the Fourth Proportional to 12,429,870.20, 18,644,805.30 and 3,912,817.40

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Solution

The fourth proportional to 12,429,870.20, 18,644,805.30 and 3,912,817.40 is: 5,869,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429,870.20 : 18,644,805.30 = 3,912,817.40 : x
  2. Step 2: Convert to fraction form
    12,429,870.20/18,644,805.30 = 3,912,817.40/x
  3. Step 3: Cross multiply
    12,429,870.20x = 18,644,805.30 × 3,912,817.40
  4. Step 4: Simplify right side
    12,429,870.20x = 72,953,718,597,452.22
  5. Step 5: Solve for x
    x = 72,953,718,597,452.22/12,429,870.20
  6. Step 6: Final answer
    x = 5,869,226.10

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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.