Home / 5,318,784,868.60-7,978,177,302.90-5,209,945,751.80

Finding the Fourth Proportional to 5,318,784,868.60, 7,978,177,302.90 and 5,209,945,751.80

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Solution

The fourth proportional to 5,318,784,868.60, 7,978,177,302.90 and 5,209,945,751.80 is: 7,814,918,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,784,868.60 : 7,978,177,302.90 = 5,209,945,751.80 : x
  2. Step 2: Convert to fraction form
    5,318,784,868.60/7,978,177,302.90 = 5,209,945,751.80/x
  3. Step 3: Cross multiply
    5,318,784,868.60x = 7,978,177,302.90 × 5,209,945,751.80
  4. Step 4: Simplify right side
    5,318,784,868.60x = 41,565,870,946,351,038,464
  5. Step 5: Solve for x
    x = 41,565,870,946,351,038,464/5,318,784,868.60
  6. Step 6: Final answer
    x = 7,814,918,627.70

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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.