Home / 12,493,312.20-18,739,968.30-3,974,509.80

Finding the Fourth Proportional to 12,493,312.20, 18,739,968.30 and 3,974,509.80

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Solution

The fourth proportional to 12,493,312.20, 18,739,968.30 and 3,974,509.80 is: 5,961,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493,312.20 : 18,739,968.30 = 3,974,509.80 : x
  2. Step 2: Convert to fraction form
    12,493,312.20/18,739,968.30 = 3,974,509.80/x
  3. Step 3: Cross multiply
    12,493,312.20x = 18,739,968.30 × 3,974,509.80
  4. Step 4: Simplify right side
    12,493,312.20x = 74,482,187,660,039.34
  5. Step 5: Solve for x
    x = 74,482,187,660,039.34/12,493,312.20
  6. Step 6: Final answer
    x = 5,961,764.70

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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.