Home / 5,318,784,869.60-7,978,177,304.40-5,209,945,752.80

Finding the Fourth Proportional to 5,318,784,869.60, 7,978,177,304.40 and 5,209,945,752.80

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Solution

The fourth proportional to 5,318,784,869.60, 7,978,177,304.40 and 5,209,945,752.80 is: 7,814,918,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,784,869.60 : 7,978,177,304.40 = 5,209,945,752.80 : x
  2. Step 2: Convert to fraction form
    5,318,784,869.60/7,978,177,304.40 = 5,209,945,752.80/x
  3. Step 3: Cross multiply
    5,318,784,869.60x = 7,978,177,304.40 × 5,209,945,752.80
  4. Step 4: Simplify right side
    5,318,784,869.60x = 41,565,870,962,144,133,120
  5. Step 5: Solve for x
    x = 41,565,870,962,144,133,120/5,318,784,869.60
  6. Step 6: Final answer
    x = 7,814,918,629.20

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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.