Home / 5,071,787.72-6,999,784.74-3,138,670.88

Finding the Fourth Proportional to 5,071,787.72, 6,999,784.74 and 3,138,670.88

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Solution

The fourth proportional to 5,071,787.72, 6,999,784.74 and 3,138,670.88 is: 4,331,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,071,787.72 : 6,999,784.74 = 3,138,670.88 : x
  2. Step 2: Convert to fraction form
    5,071,787.72/6,999,784.74 = 3,138,670.88/x
  3. Step 3: Cross multiply
    5,071,787.72x = 6,999,784.74 × 3,138,670.88
  4. Step 4: Simplify right side
    5,071,787.72x = 21,970,020,529,706.37
  5. Step 5: Solve for x
    x = 21,970,020,529,706.37/5,071,787.72
  6. Step 6: Final answer
    x = 4,331,809.95

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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.