Home / 21,052,774.50-31,591,758.90-19,339,566.18

Finding the Fourth Proportional to 21,052,774.50, 31,591,758.90 and 19,339,566.18

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Solution

The fourth proportional to 21,052,774.50, 31,591,758.90 and 19,339,566.18 is: 29,020,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052,774.50 : 31,591,758.90 = 19,339,566.18 : x
  2. Step 2: Convert to fraction form
    21,052,774.50/31,591,758.90 = 19,339,566.18/x
  3. Step 3: Cross multiply
    21,052,774.50x = 31,591,758.90 × 19,339,566.18
  4. Step 4: Simplify right side
    21,052,774.50x = 610,970,911,989,154
  5. Step 5: Solve for x
    x = 610,970,911,989,154/21,052,774.50
  6. Step 6: Final answer
    x = 29,020,921.30

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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.