Home / 21,457,979.44-29,611,110.22-12,166,174.60

Finding the Fourth Proportional to 21,457,979.44, 29,611,110.22 and 12,166,174.60

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Solution

The fourth proportional to 21,457,979.44, 29,611,110.22 and 12,166,174.60 is: 16,788,809.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457,979.44 : 29,611,110.22 = 12,166,174.60 : x
  2. Step 2: Convert to fraction form
    21,457,979.44/29,611,110.22 = 12,166,174.60/x
  3. Step 3: Cross multiply
    21,457,979.44x = 29,611,110.22 × 12,166,174.60
  4. Step 4: Simplify right side
    21,457,979.44x = 360,253,937,036,364.38
  5. Step 5: Solve for x
    x = 360,253,937,036,364.38/21,457,979.44
  6. Step 6: Final answer
    x = 16,788,809.87

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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.