Home / 7,243,613.19-9,996,265.78-3,980,428.76

Finding the Fourth Proportional to 7,243,613.19, 9,996,265.78 and 3,980,428.76

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Solution

The fourth proportional to 7,243,613.19, 9,996,265.78 and 3,980,428.76 is: 5,493,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243,613.19 : 9,996,265.78 = 3,980,428.76 : x
  2. Step 2: Convert to fraction form
    7,243,613.19/9,996,265.78 = 3,980,428.76/x
  3. Step 3: Cross multiply
    7,243,613.19x = 9,996,265.78 × 3,980,428.76
  4. Step 4: Simplify right side
    7,243,613.19x = 39,789,423,818,355.43
  5. Step 5: Solve for x
    x = 39,789,423,818,355.43/7,243,613.19
  6. Step 6: Final answer
    x = 5,493,035.42

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1.5x scale

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.