Home / 1,409,664,007.60-2,114,496,011.40-858,665,978.80

Finding the Fourth Proportional to 1,409,664,007.60, 2,114,496,011.40 and 858,665,978.80

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Solution

The fourth proportional to 1,409,664,007.60, 2,114,496,011.40 and 858,665,978.80 is: 1,287,998,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,664,007.60 : 2,114,496,011.40 = 858,665,978.80 : x
  2. Step 2: Convert to fraction form
    1,409,664,007.60/2,114,496,011.40 = 858,665,978.80/x
  3. Step 3: Cross multiply
    1,409,664,007.60x = 2,114,496,011.40 × 858,665,978.80
  4. Step 4: Simplify right side
    1,409,664,007.60x = 1,815,645,787,297,476,864
  5. Step 5: Solve for x
    x = 1,815,645,787,297,476,864/1,409,664,007.60
  6. Step 6: Final answer
    x = 1,287,998,968.20

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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.