Home / 7,941,581.76-11,907,852.96-5,420,291.52

Finding the Fourth Proportional to 7,941,581.76, 11,907,852.96 and 5,420,291.52

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Solution

The fourth proportional to 7,941,581.76, 11,907,852.96 and 5,420,291.52 is: 8,127,352.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941,581.76 : 11,907,852.96 = 5,420,291.52 : x
  2. Step 2: Convert to fraction form
    7,941,581.76/11,907,852.96 = 5,420,291.52/x
  3. Step 3: Cross multiply
    7,941,581.76x = 11,907,852.96 × 5,420,291.52
  4. Step 4: Simplify right side
    7,941,581.76x = 64,544,034,420,494.90
  5. Step 5: Solve for x
    x = 64,544,034,420,494.90/7,941,581.76
  6. Step 6: Final answer
    x = 8,127,352.51

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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.