Home / 6,420,808,860.80-9,631,213,291.20-5,441,256,809.60

Finding the Fourth Proportional to 6,420,808,860.80, 9,631,213,291.20 and 5,441,256,809.60

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Solution

The fourth proportional to 6,420,808,860.80, 9,631,213,291.20 and 5,441,256,809.60 is: 8,161,885,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,808,860.80 : 9,631,213,291.20 = 5,441,256,809.60 : x
  2. Step 2: Convert to fraction form
    6,420,808,860.80/9,631,213,291.20 = 5,441,256,809.60/x
  3. Step 3: Cross multiply
    6,420,808,860.80x = 9,631,213,291.20 × 5,441,256,809.60
  4. Step 4: Simplify right side
    6,420,808,860.80x = 52,405,904,905,452,036,096
  5. Step 5: Solve for x
    x = 52,405,904,905,452,036,096/6,420,808,860.80
  6. Step 6: Final answer
    x = 8,161,885,214.40

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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.