Home / 15,004,451.17-20,706,242.03-8,128,933.24

Finding the Fourth Proportional to 15,004,451.17, 20,706,242.03 and 8,128,933.24

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Solution

The fourth proportional to 15,004,451.17, 20,706,242.03 and 8,128,933.24 is: 11,217,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,451.17 : 20,706,242.03 = 8,128,933.24 : x
  2. Step 2: Convert to fraction form
    15,004,451.17/20,706,242.03 = 8,128,933.24/x
  3. Step 3: Cross multiply
    15,004,451.17x = 20,706,242.03 × 8,128,933.24
  4. Step 4: Simplify right side
    15,004,451.17x = 168,319,658,968,976.19
  5. Step 5: Solve for x
    x = 168,319,658,968,976.19/15,004,451.17
  6. Step 6: Final answer
    x = 11,217,981.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.