Home / 8,791,878.40-13,170,321.60-7,739,785.60

Finding the Fourth Proportional to 8,791,878.40, 13,170,321.60 and 7,739,785.60

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Solution

The fourth proportional to 8,791,878.40, 13,170,321.60 and 7,739,785.60 is: 11,594,276.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,878.40 : 13,170,321.60 = 7,739,785.60 : x
  2. Step 2: Convert to fraction form
    8,791,878.40/13,170,321.60 = 7,739,785.60/x
  3. Step 3: Cross multiply
    8,791,878.40x = 13,170,321.60 × 7,739,785.60
  4. Step 4: Simplify right side
    8,791,878.40x = 101,935,465,467,048.95
  5. Step 5: Solve for x
    x = 101,935,465,467,048.95/8,791,878.40
  6. Step 6: Final answer
    x = 11,594,276.08

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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.