Home / 20,215,282.72-30,314,292.72-11,701,495.84

Finding the Fourth Proportional to 20,215,282.72, 30,314,292.72 and 11,701,495.84

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Solution

The fourth proportional to 20,215,282.72, 30,314,292.72 and 11,701,495.84 is: 17,547,247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,282.72 : 30,314,292.72 = 11,701,495.84 : x
  2. Step 2: Convert to fraction form
    20,215,282.72/30,314,292.72 = 11,701,495.84/x
  3. Step 3: Cross multiply
    20,215,282.72x = 30,314,292.72 × 11,701,495.84
  4. Step 4: Simplify right side
    20,215,282.72x = 354,722,570,155,622.25
  5. Step 5: Solve for x
    x = 354,722,570,155,622.25/20,215,282.72
  6. Step 6: Final answer
    x = 17,547,247.55

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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.