Home / 12,453,869.20-18,683,428.20-3,935,066.80

Finding the Fourth Proportional to 12,453,869.20, 18,683,428.20 and 3,935,066.80

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Solution

The fourth proportional to 12,453,869.20, 18,683,428.20 and 3,935,066.80 is: 5,903,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453,869.20 : 18,683,428.20 = 3,935,066.80 : x
  2. Step 2: Convert to fraction form
    12,453,869.20/18,683,428.20 = 3,935,066.80/x
  3. Step 3: Cross multiply
    12,453,869.20x = 18,683,428.20 × 3,935,066.80
  4. Step 4: Simplify right side
    12,453,869.20x = 73,520,538,020,003.75
  5. Step 5: Solve for x
    x = 73,520,538,020,003.75/12,453,869.20
  6. Step 6: Final answer
    x = 5,903,429.44

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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.