Home / 721,740,329.31-1,083,065,911.11-307,216,488.69

Finding the Fourth Proportional to 721,740,329.31, 1,083,065,911.11 and 307,216,488.69

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Solution

The fourth proportional to 721,740,329.31, 1,083,065,911.11 and 307,216,488.69 is: 461,018,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,740,329.31 : 1,083,065,911.11 = 307,216,488.69 : x
  2. Step 2: Convert to fraction form
    721,740,329.31/1,083,065,911.11 = 307,216,488.69/x
  3. Step 3: Cross multiply
    721,740,329.31x = 1,083,065,911.11 × 307,216,488.69
  4. Step 4: Simplify right side
    721,740,329.31x = 332,735,706,231,049,856
  5. Step 5: Solve for x
    x = 332,735,706,231,049,856/721,740,329.31
  6. Step 6: Final answer
    x = 461,018,586.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.