Home / 1,348,071,143.70-2,022,106,715.55-428,019,489.30

Finding the Fourth Proportional to 1,348,071,143.70, 2,022,106,715.55 and 428,019,489.30

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Solution

The fourth proportional to 1,348,071,143.70, 2,022,106,715.55 and 428,019,489.30 is: 642,029,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,071,143.70 : 2,022,106,715.55 = 428,019,489.30 : x
  2. Step 2: Convert to fraction form
    1,348,071,143.70/2,022,106,715.55 = 428,019,489.30/x
  3. Step 3: Cross multiply
    1,348,071,143.70x = 2,022,106,715.55 × 428,019,489.30
  4. Step 4: Simplify right side
    1,348,071,143.70x = 865,501,083,699,811,328
  5. Step 5: Solve for x
    x = 865,501,083,699,811,328/1,348,071,143.70
  6. Step 6: Final answer
    x = 642,029,233.95

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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.