Home / 20,581,551.53-30,831,166.58-12,379,665.13

Finding the Fourth Proportional to 20,581,551.53, 30,831,166.58 and 12,379,665.13

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Solution

The fourth proportional to 20,581,551.53, 30,831,166.58 and 12,379,665.13 is: 18,544,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581,551.53 : 30,831,166.58 = 12,379,665.13 : x
  2. Step 2: Convert to fraction form
    20,581,551.53/30,831,166.58 = 12,379,665.13/x
  3. Step 3: Cross multiply
    20,581,551.53x = 30,831,166.58 × 12,379,665.13
  4. Step 4: Simplify right side
    20,581,551.53x = 381,679,517,804,287.94
  5. Step 5: Solve for x
    x = 381,679,517,804,287.94/20,581,551.53
  6. Step 6: Final answer
    x = 18,544,739.80

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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.