Home / 12,478,640.10-18,717,960.15-11,848,784.10

Finding the Fourth Proportional to 12,478,640.10, 18,717,960.15 and 11,848,784.10

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Solution

The fourth proportional to 12,478,640.10, 18,717,960.15 and 11,848,784.10 is: 17,773,176.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,640.10 : 18,717,960.15 = 11,848,784.10 : x
  2. Step 2: Convert to fraction form
    12,478,640.10/18,717,960.15 = 11,848,784.10/x
  3. Step 3: Cross multiply
    12,478,640.10x = 18,717,960.15 × 11,848,784.10
  4. Step 4: Simplify right side
    12,478,640.10x = 221,785,068,609,753.59
  5. Step 5: Solve for x
    x = 221,785,068,609,753.59/12,478,640.10
  6. Step 6: Final answer
    x = 17,773,176.15

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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.