Home / 23,131,073.64-31,921,071.80-12,817,968.96

Finding the Fourth Proportional to 23,131,073.64, 31,921,071.80 and 12,817,968.96

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Solution

The fourth proportional to 23,131,073.64, 31,921,071.80 and 12,817,968.96 is: 17,688,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,131,073.64 : 31,921,071.80 = 12,817,968.96 : x
  2. Step 2: Convert to fraction form
    23,131,073.64/31,921,071.80 = 12,817,968.96/x
  3. Step 3: Cross multiply
    23,131,073.64x = 31,921,071.80 × 12,817,968.96
  4. Step 4: Simplify right side
    23,131,073.64x = 409,163,307,438,241.56
  5. Step 5: Solve for x
    x = 409,163,307,438,241.56/23,131,073.64
  6. Step 6: Final answer
    x = 17,688,902.55

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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.