Home / 28,023,223.80-42,034,835.70-15,887,998.20

Finding the Fourth Proportional to 28,023,223.80, 42,034,835.70 and 15,887,998.20

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Solution

The fourth proportional to 28,023,223.80, 42,034,835.70 and 15,887,998.20 is: 23,831,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023,223.80 : 42,034,835.70 = 15,887,998.20 : x
  2. Step 2: Convert to fraction form
    28,023,223.80/42,034,835.70 = 15,887,998.20/x
  3. Step 3: Cross multiply
    28,023,223.80x = 42,034,835.70 × 15,887,998.20
  4. Step 4: Simplify right side
    28,023,223.80x = 667,849,393,938,895.75
  5. Step 5: Solve for x
    x = 667,849,393,938,895.75/28,023,223.80
  6. Step 6: Final answer
    x = 23,831,997.30

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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.