Home / 13,147,000.80-19,720,501.20-11,971,269.60

Finding the Fourth Proportional to 13,147,000.80, 19,720,501.20 and 11,971,269.60

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Solution

The fourth proportional to 13,147,000.80, 19,720,501.20 and 11,971,269.60 is: 17,956,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147,000.80 : 19,720,501.20 = 11,971,269.60 : x
  2. Step 2: Convert to fraction form
    13,147,000.80/19,720,501.20 = 11,971,269.60/x
  3. Step 3: Cross multiply
    13,147,000.80x = 19,720,501.20 × 11,971,269.60
  4. Step 4: Simplify right side
    13,147,000.80x = 236,079,436,512,323.50
  5. Step 5: Solve for x
    x = 236,079,436,512,323.50/13,147,000.80
  6. Step 6: Final answer
    x = 17,956,904.40

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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.