Home / 20,391,302.20-30,586,953.30-12,329,145.40

Finding the Fourth Proportional to 20,391,302.20, 30,586,953.30 and 12,329,145.40

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Solution

The fourth proportional to 20,391,302.20, 30,586,953.30 and 12,329,145.40 is: 18,493,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,302.20 : 30,586,953.30 = 12,329,145.40 : x
  2. Step 2: Convert to fraction form
    20,391,302.20/30,586,953.30 = 12,329,145.40/x
  3. Step 3: Cross multiply
    20,391,302.20x = 30,586,953.30 × 12,329,145.40
  4. Step 4: Simplify right side
    20,391,302.20x = 377,110,994,578,709.81
  5. Step 5: Solve for x
    x = 377,110,994,578,709.81/20,391,302.20
  6. Step 6: Final answer
    x = 18,493,718.10

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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.