Home / 12,225,828.70-18,338,743.05-5,507,364.70

Finding the Fourth Proportional to 12,225,828.70, 18,338,743.05 and 5,507,364.70

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Solution

The fourth proportional to 12,225,828.70, 18,338,743.05 and 5,507,364.70 is: 8,261,047.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225,828.70 : 18,338,743.05 = 5,507,364.70 : x
  2. Step 2: Convert to fraction form
    12,225,828.70/18,338,743.05 = 5,507,364.70/x
  3. Step 3: Cross multiply
    12,225,828.70x = 18,338,743.05 × 5,507,364.70
  4. Step 4: Simplify right side
    12,225,828.70x = 100,998,146,115,940.34
  5. Step 5: Solve for x
    x = 100,998,146,115,940.34/12,225,828.70
  6. Step 6: Final answer
    x = 8,261,047.05

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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.