Home / 20,421,027.04-28,181,023.20-11,128,599.66

Finding the Fourth Proportional to 20,421,027.04, 28,181,023.20 and 11,128,599.66

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Solution

The fourth proportional to 20,421,027.04, 28,181,023.20 and 11,128,599.66 is: 15,357,470.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,027.04 : 28,181,023.20 = 11,128,599.66 : x
  2. Step 2: Convert to fraction form
    20,421,027.04/28,181,023.20 = 11,128,599.66/x
  3. Step 3: Cross multiply
    20,421,027.04x = 28,181,023.20 × 11,128,599.66
  4. Step 4: Simplify right side
    20,421,027.04x = 313,615,325,201,972.12
  5. Step 5: Solve for x
    x = 313,615,325,201,972.12/20,421,027.04
  6. Step 6: Final answer
    x = 15,357,470.74

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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.