Home / 5,318,792,212.80-7,978,188,319.20-1,637,819,270.40

Finding the Fourth Proportional to 5,318,792,212.80, 7,978,188,319.20 and 1,637,819,270.40

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Solution

The fourth proportional to 5,318,792,212.80, 7,978,188,319.20 and 1,637,819,270.40 is: 2,456,728,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,792,212.80 : 7,978,188,319.20 = 1,637,819,270.40 : x
  2. Step 2: Convert to fraction form
    5,318,792,212.80/7,978,188,319.20 = 1,637,819,270.40/x
  3. Step 3: Cross multiply
    5,318,792,212.80x = 7,978,188,319.20 × 1,637,819,270.40
  4. Step 4: Simplify right side
    5,318,792,212.80x = 13,066,830,572,065,947,648
  5. Step 5: Solve for x
    x = 13,066,830,572,065,947,648/5,318,792,212.80
  6. Step 6: Final answer
    x = 2,456,728,905.60

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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.