Home / 831,486,172.98-1,147,451,277.92-455,144,907.32

Finding the Fourth Proportional to 831,486,172.98, 1,147,451,277.92 and 455,144,907.32

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Solution

The fourth proportional to 831,486,172.98, 1,147,451,277.92 and 455,144,907.32 is: 628,100,168.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,486,172.98 : 1,147,451,277.92 = 455,144,907.32 : x
  2. Step 2: Convert to fraction form
    831,486,172.98/1,147,451,277.92 = 455,144,907.32/x
  3. Step 3: Cross multiply
    831,486,172.98x = 1,147,451,277.92 × 455,144,907.32
  4. Step 4: Simplify right side
    831,486,172.98x = 522,256,605,543,113,984
  5. Step 5: Solve for x
    x = 522,256,605,543,113,984/831,486,172.98
  6. Step 6: Final answer
    x = 628,100,168.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.