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Finding the Fourth Proportional to 6,515,657.60, 9,776,985.60 and 2,729,523.20

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Solution

The fourth proportional to 6,515,657.60, 9,776,985.60 and 2,729,523.20 is: 4,095,750.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515,657.60 : 9,776,985.60 = 2,729,523.20 : x
  2. Step 2: Convert to fraction form
    6,515,657.60/9,776,985.60 = 2,729,523.20/x
  3. Step 3: Cross multiply
    6,515,657.60x = 9,776,985.60 × 2,729,523.20
  4. Step 4: Simplify right side
    6,515,657.60x = 26,686,509,021,265.92
  5. Step 5: Solve for x
    x = 26,686,509,021,265.92/6,515,657.60
  6. Step 6: Final answer
    x = 4,095,750.68

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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.