Home / 28,224,009.60-42,336,014.40-21,853,910.40

Finding the Fourth Proportional to 28,224,009.60, 42,336,014.40 and 21,853,910.40

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Solution

The fourth proportional to 28,224,009.60, 42,336,014.40 and 21,853,910.40 is: 32,780,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224,009.60 : 42,336,014.40 = 21,853,910.40 : x
  2. Step 2: Convert to fraction form
    28,224,009.60/42,336,014.40 = 21,853,910.40/x
  3. Step 3: Cross multiply
    28,224,009.60x = 42,336,014.40 × 21,853,910.40
  4. Step 4: Simplify right side
    28,224,009.60x = 925,207,465,390,709.62
  5. Step 5: Solve for x
    x = 925,207,465,390,709.62/28,224,009.60
  6. Step 6: Final answer
    x = 32,780,865.60

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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.