Home / 7,298,829.72-10,072,129.98-3,991,200.60

Finding the Fourth Proportional to 7,298,829.72, 10,072,129.98 and 3,991,200.60

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Solution

The fourth proportional to 7,298,829.72, 10,072,129.98 and 3,991,200.60 is: 5,507,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,298,829.72 : 10,072,129.98 = 3,991,200.60 : x
  2. Step 2: Convert to fraction form
    7,298,829.72/10,072,129.98 = 3,991,200.60/x
  3. Step 3: Cross multiply
    7,298,829.72x = 10,072,129.98 × 3,991,200.60
  4. Step 4: Simplify right side
    7,298,829.72x = 40,199,891,219,453.99
  5. Step 5: Solve for x
    x = 40,199,891,219,453.99/7,298,829.72
  6. Step 6: Final answer
    x = 5,507,717.37

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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.