Home / 1,345,680,117.30-2,019,422,969.55-472,279,797.30

Finding the Fourth Proportional to 1,345,680,117.30, 2,019,422,969.55 and 472,279,797.30

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Solution

The fourth proportional to 1,345,680,117.30, 2,019,422,969.55 and 472,279,797.30 is: 708,736,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,680,117.30 : 2,019,422,969.55 = 472,279,797.30 : x
  2. Step 2: Convert to fraction form
    1,345,680,117.30/2,019,422,969.55 = 472,279,797.30/x
  3. Step 3: Cross multiply
    1,345,680,117.30x = 2,019,422,969.55 × 472,279,797.30
  4. Step 4: Simplify right side
    1,345,680,117.30x = 953,732,670,722,038,016
  5. Step 5: Solve for x
    x = 953,732,670,722,038,016/1,345,680,117.30
  6. Step 6: Final answer
    x = 708,736,540.33

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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.