Home / 21,985,040.40-32,977,560.60-18,457,846.80

Finding the Fourth Proportional to 21,985,040.40, 32,977,560.60 and 18,457,846.80

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Solution

The fourth proportional to 21,985,040.40, 32,977,560.60 and 18,457,846.80 is: 27,686,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,985,040.40 : 32,977,560.60 = 18,457,846.80 : x
  2. Step 2: Convert to fraction form
    21,985,040.40/32,977,560.60 = 18,457,846.80/x
  3. Step 3: Cross multiply
    21,985,040.40x = 32,977,560.60 × 18,457,846.80
  4. Step 4: Simplify right side
    21,985,040.40x = 608,694,761,392,516.12
  5. Step 5: Solve for x
    x = 608,694,761,392,516.12/21,985,040.40
  6. Step 6: Final answer
    x = 27,686,770.20

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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.