Home / 878,342,538.41-1,317,465,311.66-642,234,014.42

Finding the Fourth Proportional to 878,342,538.41, 1,317,465,311.66 and 642,234,014.42

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Solution

The fourth proportional to 878,342,538.41, 1,317,465,311.66 and 642,234,014.42 is: 963,315,561.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,342,538.41 : 1,317,465,311.66 = 642,234,014.42 : x
  2. Step 2: Convert to fraction form
    878,342,538.41/1,317,465,311.66 = 642,234,014.42/x
  3. Step 3: Cross multiply
    878,342,538.41x = 1,317,465,311.66 × 642,234,014.42
  4. Step 4: Simplify right side
    878,342,538.41x = 846,121,035,963,287,040
  5. Step 5: Solve for x
    x = 846,121,035,963,287,040/878,342,538.41
  6. Step 6: Final answer
    x = 963,315,561.94

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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.