Home / 628,500,665,619.80-942,750,998,429.70-430,141,375,251.80

Finding the Fourth Proportional to 628,500,665,619.80, 942,750,998,429.70 and 430,141,375,251.80

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Solution

The fourth proportional to 628,500,665,619.80, 942,750,998,429.70 and 430,141,375,251.80 is: 645,212,062,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,500,665,619.80 : 942,750,998,429.70 = 430,141,375,251.80 : x
  2. Step 2: Convert to fraction form
    628,500,665,619.80/942,750,998,429.70 = 430,141,375,251.80/x
  3. Step 3: Cross multiply
    628,500,665,619.80x = 942,750,998,429.70 × 430,141,375,251.80
  4. Step 4: Simplify right side
    628,500,665,619.80x = 405,516,210,984,558,648,098,816
  5. Step 5: Solve for x
    x = 405,516,210,984,558,648,098,816/628,500,665,619.80
  6. Step 6: Final answer
    x = 645,212,062,877.70

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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.