Home / 7,767,187.20-11,650,780.80-5,079,801.60

Finding the Fourth Proportional to 7,767,187.20, 11,650,780.80 and 5,079,801.60

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Solution

The fourth proportional to 7,767,187.20, 11,650,780.80 and 5,079,801.60 is: 7,619,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767,187.20 : 11,650,780.80 = 5,079,801.60 : x
  2. Step 2: Convert to fraction form
    7,767,187.20/11,650,780.80 = 5,079,801.60/x
  3. Step 3: Cross multiply
    7,767,187.20x = 11,650,780.80 × 5,079,801.60
  4. Step 4: Simplify right side
    7,767,187.20x = 59,183,654,949,089.28
  5. Step 5: Solve for x
    x = 59,183,654,949,089.28/7,767,187.20
  6. Step 6: Final answer
    x = 7,619,702.40

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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.