Home / 628,500,665,619.30-942,750,998,428.95-430,141,375,251.30

Finding the Fourth Proportional to 628,500,665,619.30, 942,750,998,428.95 and 430,141,375,251.30

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Solution

The fourth proportional to 628,500,665,619.30, 942,750,998,428.95 and 430,141,375,251.30 is: 645,212,062,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,500,665,619.30 : 942,750,998,428.95 = 430,141,375,251.30 : x
  2. Step 2: Convert to fraction form
    628,500,665,619.30/942,750,998,428.95 = 430,141,375,251.30/x
  3. Step 3: Cross multiply
    628,500,665,619.30x = 942,750,998,428.95 × 430,141,375,251.30
  4. Step 4: Simplify right side
    628,500,665,619.30x = 405,516,210,983,764,683,128,832
  5. Step 5: Solve for x
    x = 405,516,210,983,764,683,128,832/628,500,665,619.30
  6. Step 6: Final answer
    x = 645,212,062,876.95

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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.