Home / 12,492,090.40-18,738,135.60-6,106,439.20

Finding the Fourth Proportional to 12,492,090.40, 18,738,135.60 and 6,106,439.20

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Solution

The fourth proportional to 12,492,090.40, 18,738,135.60 and 6,106,439.20 is: 9,159,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492,090.40 : 18,738,135.60 = 6,106,439.20 : x
  2. Step 2: Convert to fraction form
    12,492,090.40/18,738,135.60 = 6,106,439.20/x
  3. Step 3: Cross multiply
    12,492,090.40x = 18,738,135.60 × 6,106,439.20
  4. Step 4: Simplify right side
    12,492,090.40x = 114,423,285,762,755.53
  5. Step 5: Solve for x
    x = 114,423,285,762,755.53/12,492,090.40
  6. Step 6: Final answer
    x = 9,159,658.80

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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.