Home / 5,419,705.96-7,478,655.14-3,128,604.76

Finding the Fourth Proportional to 5,419,705.96, 7,478,655.14 and 3,128,604.76

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Solution

The fourth proportional to 5,419,705.96, 7,478,655.14 and 3,128,604.76 is: 4,317,163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419,705.96 : 7,478,655.14 = 3,128,604.76 : x
  2. Step 2: Convert to fraction form
    5,419,705.96/7,478,655.14 = 3,128,604.76/x
  3. Step 3: Cross multiply
    5,419,705.96x = 7,478,655.14 × 3,128,604.76
  4. Step 4: Simplify right side
    5,419,705.96x = 23,397,756,069,402.46
  5. Step 5: Solve for x
    x = 23,397,756,069,402.46/5,419,705.96
  6. Step 6: Final answer
    x = 4,317,163.37

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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.