Home / 12,379,477.20-18,571,840.20-3,742,868.40

Finding the Fourth Proportional to 12,379,477.20, 18,571,840.20 and 3,742,868.40

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Solution

The fourth proportional to 12,379,477.20, 18,571,840.20 and 3,742,868.40 is: 5,615,096.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,477.20 : 18,571,840.20 = 3,742,868.40 : x
  2. Step 2: Convert to fraction form
    12,379,477.20/18,571,840.20 = 3,742,868.40/x
  3. Step 3: Cross multiply
    12,379,477.20x = 18,571,840.20 × 3,742,868.40
  4. Step 4: Simplify right side
    12,379,477.20x = 69,511,953,814,429.67
  5. Step 5: Solve for x
    x = 69,511,953,814,429.67/12,379,477.20
  6. Step 6: Final answer
    x = 5,615,096.07

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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.