Home / 720,217,608.87-993,887,344.29-406,945,096.86

Finding the Fourth Proportional to 720,217,608.87, 993,887,344.29 and 406,945,096.86

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Solution

The fourth proportional to 720,217,608.87, 993,887,344.29 and 406,945,096.86 is: 561,576,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,217,608.87 : 993,887,344.29 = 406,945,096.86 : x
  2. Step 2: Convert to fraction form
    720,217,608.87/993,887,344.29 = 406,945,096.86/x
  3. Step 3: Cross multiply
    720,217,608.87x = 993,887,344.29 × 406,945,096.86
  4. Step 4: Simplify right side
    720,217,608.87x = 404,457,581,590,022,208
  5. Step 5: Solve for x
    x = 404,457,581,590,022,208/720,217,608.87
  6. Step 6: Final answer
    x = 561,576,913.16

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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.