Home / 12,383,112.40-18,573,793.80-4,294,128.40

Finding the Fourth Proportional to 12,383,112.40, 18,573,793.80 and 4,294,128.40

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Solution

The fourth proportional to 12,383,112.40, 18,573,793.80 and 4,294,128.40 is: 6,440,889.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383,112.40 : 18,573,793.80 = 4,294,128.40 : x
  2. Step 2: Convert to fraction form
    12,383,112.40/18,573,793.80 = 4,294,128.40/x
  3. Step 3: Cross multiply
    12,383,112.40x = 18,573,793.80 × 4,294,128.40
  4. Step 4: Simplify right side
    12,383,112.40x = 79,758,255,452,323.94
  5. Step 5: Solve for x
    x = 79,758,255,452,323.94/12,383,112.40
  6. Step 6: Final answer
    x = 6,440,889.24

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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.