Home / 745,155,454.86-1,028,321,328.25-410,639,979.69

Finding the Fourth Proportional to 745,155,454.86, 1,028,321,328.25 and 410,639,979.69

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Solution

The fourth proportional to 745,155,454.86, 1,028,321,328.25 and 410,639,979.69 is: 566,686,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,155,454.86 : 1,028,321,328.25 = 410,639,979.69 : x
  2. Step 2: Convert to fraction form
    745,155,454.86/1,028,321,328.25 = 410,639,979.69/x
  3. Step 3: Cross multiply
    745,155,454.86x = 1,028,321,328.25 × 410,639,979.69
  4. Step 4: Simplify right side
    745,155,454.86x = 422,269,849,347,373,824
  5. Step 5: Solve for x
    x = 422,269,849,347,373,824/745,155,454.86
  6. Step 6: Final answer
    x = 566,686,919.61

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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.