Home / 745,407,665.86-1,028,708,601.31-410,879,433.79

Finding the Fourth Proportional to 745,407,665.86, 1,028,708,601.31 and 410,879,433.79

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Solution

The fourth proportional to 745,407,665.86, 1,028,708,601.31 and 410,879,433.79 is: 567,038,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,407,665.86 : 1,028,708,601.31 = 410,879,433.79 : x
  2. Step 2: Convert to fraction form
    745,407,665.86/1,028,708,601.31 = 410,879,433.79/x
  3. Step 3: Cross multiply
    745,407,665.86x = 1,028,708,601.31 × 410,879,433.79
  4. Step 4: Simplify right side
    745,407,665.86x = 422,675,207,636,012,096
  5. Step 5: Solve for x
    x = 422,675,207,636,012,096/745,407,665.86
  6. Step 6: Final answer
    x = 567,038,986.85

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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.