Home / 206,496,014.40-309,744,021.60-144,686,145.60

Finding the Fourth Proportional to 206,496,014.40, 309,744,021.60 and 144,686,145.60

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Solution

The fourth proportional to 206,496,014.40, 309,744,021.60 and 144,686,145.60 is: 217,029,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,496,014.40 : 309,744,021.60 = 144,686,145.60 : x
  2. Step 2: Convert to fraction form
    206,496,014.40/309,744,021.60 = 144,686,145.60/x
  3. Step 3: Cross multiply
    206,496,014.40x = 309,744,021.60 × 144,686,145.60
  4. Step 4: Simplify right side
    206,496,014.40x = 44,815,668,607,947,144
  5. Step 5: Solve for x
    x = 44,815,668,607,947,144/206,496,014.40
  6. Step 6: Final answer
    x = 217,029,218.40

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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.