Home / 7,243,622.19-9,996,278.22-3,980,437.79

Finding the Fourth Proportional to 7,243,622.19, 9,996,278.22 and 3,980,437.79

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Solution

The fourth proportional to 7,243,622.19, 9,996,278.22 and 3,980,437.79 is: 5,493,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243,622.19 : 9,996,278.22 = 3,980,437.79 : x
  2. Step 2: Convert to fraction form
    7,243,622.19/9,996,278.22 = 3,980,437.79/x
  3. Step 3: Cross multiply
    7,243,622.19x = 9,996,278.22 × 3,980,437.79
  4. Step 4: Simplify right side
    7,243,622.19x = 39,789,563,536,260.55
  5. Step 5: Solve for x
    x = 39,789,563,536,260.55/7,243,622.19
  6. Step 6: Final answer
    x = 5,493,047.88

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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.