Home / 638,060,614.54-880,586,418.93-387,145,313.46

Finding the Fourth Proportional to 638,060,614.54, 880,586,418.93 and 387,145,313.46

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Solution

The fourth proportional to 638,060,614.54, 880,586,418.93 and 387,145,313.46 is: 534,298,619.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,060,614.54 : 880,586,418.93 = 387,145,313.46 : x
  2. Step 2: Convert to fraction form
    638,060,614.54/880,586,418.93 = 387,145,313.46/x
  3. Step 3: Cross multiply
    638,060,614.54x = 880,586,418.93 × 387,145,313.46
  4. Step 4: Simplify right side
    638,060,614.54x = 340,914,905,185,273,664
  5. Step 5: Solve for x
    x = 340,914,905,185,273,664/638,060,614.54
  6. Step 6: Final answer
    x = 534,298,619.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.