Home / 1,422,828,921.62-2,134,972,983.46-686,526,766.76

Finding the Fourth Proportional to 1,422,828,921.62, 2,134,972,983.46 and 686,526,766.76

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Solution

The fourth proportional to 1,422,828,921.62, 2,134,972,983.46 and 686,526,766.76 is: 1,030,142,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,828,921.62 : 2,134,972,983.46 = 686,526,766.76 : x
  2. Step 2: Convert to fraction form
    1,422,828,921.62/2,134,972,983.46 = 686,526,766.76/x
  3. Step 3: Cross multiply
    1,422,828,921.62x = 2,134,972,983.46 × 686,526,766.76
  4. Step 4: Simplify right side
    1,422,828,921.62x = 1,465,716,099,456,649,728
  5. Step 5: Solve for x
    x = 1,465,716,099,456,649,728/1,422,828,921.62
  6. Step 6: Final answer
    x = 1,030,142,188.69

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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.