Home / 1,348,071,141.70-2,022,106,712.55-428,019,487.30

Finding the Fourth Proportional to 1,348,071,141.70, 2,022,106,712.55 and 428,019,487.30

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Solution

The fourth proportional to 1,348,071,141.70, 2,022,106,712.55 and 428,019,487.30 is: 642,029,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,071,141.70 : 2,022,106,712.55 = 428,019,487.30 : x
  2. Step 2: Convert to fraction form
    1,348,071,141.70/2,022,106,712.55 = 428,019,487.30/x
  3. Step 3: Cross multiply
    1,348,071,141.70x = 2,022,106,712.55 × 428,019,487.30
  4. Step 4: Simplify right side
    1,348,071,141.70x = 865,501,078,371,539,456
  5. Step 5: Solve for x
    x = 865,501,078,371,539,456/1,348,071,141.70
  6. Step 6: Final answer
    x = 642,029,230.95

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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.