Home / 485,112,404.80-727,668,607.20-140,100,907.60

Finding the Fourth Proportional to 485,112,404.80, 727,668,607.20 and 140,100,907.60

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Solution

The fourth proportional to 485,112,404.80, 727,668,607.20 and 140,100,907.60 is: 210,151,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,112,404.80 : 727,668,607.20 = 140,100,907.60 : x
  2. Step 2: Convert to fraction form
    485,112,404.80/727,668,607.20 = 140,100,907.60/x
  3. Step 3: Cross multiply
    485,112,404.80x = 727,668,607.20 × 140,100,907.60
  4. Step 4: Simplify right side
    485,112,404.80x = 101,947,032,300,747,904
  5. Step 5: Solve for x
    x = 101,947,032,300,747,904/485,112,404.80
  6. Step 6: Final answer
    x = 210,151,361.40

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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.