Home / 21,252,128.61-31,878,084.09-8,299,594.83

Finding the Fourth Proportional to 21,252,128.61, 31,878,084.09 and 8,299,594.83

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Solution

The fourth proportional to 21,252,128.61, 31,878,084.09 and 8,299,594.83 is: 12,449,349.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252,128.61 : 31,878,084.09 = 8,299,594.83 : x
  2. Step 2: Convert to fraction form
    21,252,128.61/31,878,084.09 = 8,299,594.83/x
  3. Step 3: Cross multiply
    21,252,128.61x = 31,878,084.09 × 8,299,594.83
  4. Step 4: Simplify right side
    21,252,128.61x = 264,575,182,054,335.56
  5. Step 5: Solve for x
    x = 264,575,182,054,335.56/21,252,128.61
  6. Step 6: Final answer
    x = 12,449,349.75

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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.