Home / 21,809,913.60-32,714,870.40-13,306,857.60

Finding the Fourth Proportional to 21,809,913.60, 32,714,870.40 and 13,306,857.60

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Solution

The fourth proportional to 21,809,913.60, 32,714,870.40 and 13,306,857.60 is: 19,960,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,809,913.60 : 32,714,870.40 = 13,306,857.60 : x
  2. Step 2: Convert to fraction form
    21,809,913.60/32,714,870.40 = 13,306,857.60/x
  3. Step 3: Cross multiply
    21,809,913.60x = 32,714,870.40 × 13,306,857.60
  4. Step 4: Simplify right side
    21,809,913.60x = 435,332,121,815,255
  5. Step 5: Solve for x
    x = 435,332,121,815,255/21,809,913.60
  6. Step 6: Final answer
    x = 19,960,286.40

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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.