Home / 638,120,761.40-957,181,142.10-546,287,756.60

Finding the Fourth Proportional to 638,120,761.40, 957,181,142.10 and 546,287,756.60

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Solution

The fourth proportional to 638,120,761.40, 957,181,142.10 and 546,287,756.60 is: 819,431,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,120,761.40 : 957,181,142.10 = 546,287,756.60 : x
  2. Step 2: Convert to fraction form
    638,120,761.40/957,181,142.10 = 546,287,756.60/x
  3. Step 3: Cross multiply
    638,120,761.40x = 957,181,142.10 × 546,287,756.60
  4. Step 4: Simplify right side
    638,120,761.40x = 522,896,338,777,634,880
  5. Step 5: Solve for x
    x = 522,896,338,777,634,880/638,120,761.40
  6. Step 6: Final answer
    x = 819,431,634.90

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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.