Home / 5,318,794,266.30-7,978,191,399.45-1,637,821,323.90

Finding the Fourth Proportional to 5,318,794,266.30, 7,978,191,399.45 and 1,637,821,323.90

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Solution

The fourth proportional to 5,318,794,266.30, 7,978,191,399.45 and 1,637,821,323.90 is: 2,456,731,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,794,266.30 : 7,978,191,399.45 = 1,637,821,323.90 : x
  2. Step 2: Convert to fraction form
    5,318,794,266.30/7,978,191,399.45 = 1,637,821,323.90/x
  3. Step 3: Cross multiply
    5,318,794,266.30x = 7,978,191,399.45 × 1,637,821,323.90
  4. Step 4: Simplify right side
    5,318,794,266.30x = 13,066,852,000,174,792,704
  5. Step 5: Solve for x
    x = 13,066,852,000,174,792,704/5,318,794,266.30
  6. Step 6: Final answer
    x = 2,456,731,985.85

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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.