Home / 18,722,901.60-28,084,352.40-5,259,729.60

Finding the Fourth Proportional to 18,722,901.60, 28,084,352.40 and 5,259,729.60

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Solution

The fourth proportional to 18,722,901.60, 28,084,352.40 and 5,259,729.60 is: 7,889,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,901.60 : 28,084,352.40 = 5,259,729.60 : x
  2. Step 2: Convert to fraction form
    18,722,901.60/28,084,352.40 = 5,259,729.60/x
  3. Step 3: Cross multiply
    18,722,901.60x = 28,084,352.40 × 5,259,729.60
  4. Step 4: Simplify right side
    18,722,901.60x = 147,716,099,615,111.03
  5. Step 5: Solve for x
    x = 147,716,099,615,111.03/18,722,901.60
  6. Step 6: Final answer
    x = 7,889,594.40

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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.