Home / 1,329,698,725.20-1,994,548,087.80-409,455,489.60

Finding the Fourth Proportional to 1,329,698,725.20, 1,994,548,087.80 and 409,455,489.60

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Solution

The fourth proportional to 1,329,698,725.20, 1,994,548,087.80 and 409,455,489.60 is: 614,183,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,698,725.20 : 1,994,548,087.80 = 409,455,489.60 : x
  2. Step 2: Convert to fraction form
    1,329,698,725.20/1,994,548,087.80 = 409,455,489.60/x
  3. Step 3: Cross multiply
    1,329,698,725.20x = 1,994,548,087.80 × 409,455,489.60
  4. Step 4: Simplify right side
    1,329,698,725.20x = 816,678,663,820,892,800
  5. Step 5: Solve for x
    x = 816,678,663,820,892,800/1,329,698,725.20
  6. Step 6: Final answer
    x = 614,183,234.40

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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.