Home / 18,756,638.00-28,131,020.39-5,290,316.72

Finding the Fourth Proportional to 18,756,638.00, 28,131,020.39 and 5,290,316.72

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Solution

The fourth proportional to 18,756,638.00, 28,131,020.39 and 5,290,316.72 is: 7,934,364.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,638.00 : 28,131,020.39 = 5,290,316.72 : x
  2. Step 2: Convert to fraction form
    18,756,638.00/28,131,020.39 = 5,290,316.72/x
  3. Step 3: Cross multiply
    18,756,638.00x = 28,131,020.39 × 5,290,316.72
  4. Step 4: Simplify right side
    18,756,638.00x = 148,822,007,392,448.59
  5. Step 5: Solve for x
    x = 148,822,007,392,448.59/18,756,638.00
  6. Step 6: Final answer
    x = 7,934,364.75

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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.