Home / 7,881,018.80-11,821,528.20-4,512,455.60

Finding the Fourth Proportional to 7,881,018.80, 11,821,528.20 and 4,512,455.60

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Solution

The fourth proportional to 7,881,018.80, 11,821,528.20 and 4,512,455.60 is: 6,768,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,018.80 : 11,821,528.20 = 4,512,455.60 : x
  2. Step 2: Convert to fraction form
    7,881,018.80/11,821,528.20 = 4,512,455.60/x
  3. Step 3: Cross multiply
    7,881,018.80x = 11,821,528.20 × 4,512,455.60
  4. Step 4: Simplify right side
    7,881,018.80x = 53,344,121,126,647.91
  5. Step 5: Solve for x
    x = 53,344,121,126,647.91/7,881,018.80
  6. Step 6: Final answer
    x = 6,768,683.40

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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.