Home / 28,217,555.64-42,254,539.92-18,603,766.08

Finding the Fourth Proportional to 28,217,555.64, 42,254,539.92 and 18,603,766.08

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Solution

The fourth proportional to 28,217,555.64, 42,254,539.92 and 18,603,766.08 is: 27,858,315.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,217,555.64 : 42,254,539.92 = 18,603,766.08 : x
  2. Step 2: Convert to fraction form
    28,217,555.64/42,254,539.92 = 18,603,766.08/x
  3. Step 3: Cross multiply
    28,217,555.64x = 42,254,539.92 × 18,603,766.08
  4. Step 4: Simplify right side
    28,217,555.64x = 786,093,576,489,701.88
  5. Step 5: Solve for x
    x = 786,093,576,489,701.88/28,217,555.64
  6. Step 6: Final answer
    x = 27,858,315.81

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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.