Home / 20,717,267.40-31,084,856.46-11,121,440.04

Finding the Fourth Proportional to 20,717,267.40, 31,084,856.46 and 11,121,440.04

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Solution

The fourth proportional to 20,717,267.40, 31,084,856.46 and 11,121,440.04 is: 16,686,967.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717,267.40 : 31,084,856.46 = 11,121,440.04 : x
  2. Step 2: Convert to fraction form
    20,717,267.40/31,084,856.46 = 11,121,440.04/x
  3. Step 3: Cross multiply
    20,717,267.40x = 31,084,856.46 × 11,121,440.04
  4. Step 4: Simplify right side
    20,717,267.40x = 345,708,367,271,896.62
  5. Step 5: Solve for x
    x = 345,708,367,271,896.62/20,717,267.40
  6. Step 6: Final answer
    x = 16,686,967.47

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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.