Home / 7,188,303.16-9,919,906.40-3,925,140.66

Finding the Fourth Proportional to 7,188,303.16, 9,919,906.40 and 3,925,140.66

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Solution

The fourth proportional to 7,188,303.16, 9,919,906.40 and 3,925,140.66 is: 5,416,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188,303.16 : 9,919,906.40 = 3,925,140.66 : x
  2. Step 2: Convert to fraction form
    7,188,303.16/9,919,906.40 = 3,925,140.66/x
  3. Step 3: Cross multiply
    7,188,303.16x = 9,919,906.40 × 3,925,140.66
  4. Step 4: Simplify right side
    7,188,303.16x = 38,937,027,954,034.23
  5. Step 5: Solve for x
    x = 38,937,027,954,034.23/7,188,303.16
  6. Step 6: Final answer
    x = 5,416,720.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.