Home / 407,999,827.31-563,059,738.40-229,439,912.31

Finding the Fourth Proportional to 407,999,827.31, 563,059,738.40 and 229,439,912.31

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Solution

The fourth proportional to 407,999,827.31, 563,059,738.40 and 229,439,912.31 is: 316,638,312.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,999,827.31 : 563,059,738.40 = 229,439,912.31 : x
  2. Step 2: Convert to fraction form
    407,999,827.31/563,059,738.40 = 229,439,912.31/x
  3. Step 3: Cross multiply
    407,999,827.31x = 563,059,738.40 × 229,439,912.31
  4. Step 4: Simplify right side
    407,999,827.31x = 129,188,377,002,640,336
  5. Step 5: Solve for x
    x = 129,188,377,002,640,336/407,999,827.31
  6. Step 6: Final answer
    x = 316,638,312.95

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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.