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Finding the Fourth Proportional to 8,917,312.14, 12,305,963.07 and 4,842,960.30

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Solution

The fourth proportional to 8,917,312.14, 12,305,963.07 and 4,842,960.30 is: 6,683,324.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917,312.14 : 12,305,963.07 = 4,842,960.30 : x
  2. Step 2: Convert to fraction form
    8,917,312.14/12,305,963.07 = 4,842,960.30/x
  3. Step 3: Cross multiply
    8,917,312.14x = 12,305,963.07 × 4,842,960.30
  4. Step 4: Simplify right side
    8,917,312.14x = 59,597,290,601,276.12
  5. Step 5: Solve for x
    x = 59,597,290,601,276.12/8,917,312.14
  6. Step 6: Final answer
    x = 6,683,324.49

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1.5x scale

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.