Home / 28,402,492.80-42,603,739.20-21,684,028.80

Finding the Fourth Proportional to 28,402,492.80, 42,603,739.20 and 21,684,028.80

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Solution

The fourth proportional to 28,402,492.80, 42,603,739.20 and 21,684,028.80 is: 32,526,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402,492.80 : 42,603,739.20 = 21,684,028.80 : x
  2. Step 2: Convert to fraction form
    28,402,492.80/42,603,739.20 = 21,684,028.80/x
  3. Step 3: Cross multiply
    28,402,492.80x = 42,603,739.20 × 21,684,028.80
  4. Step 4: Simplify right side
    28,402,492.80x = 923,820,707,800,489
  5. Step 5: Solve for x
    x = 923,820,707,800,489/28,402,492.80
  6. Step 6: Final answer
    x = 32,526,043.20

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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.