Home / 129,056,078.46-178,097,413.90-70,318,743.58

Finding the Fourth Proportional to 129,056,078.46, 178,097,413.90 and 70,318,743.58

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Solution

The fourth proportional to 129,056,078.46, 178,097,413.90 and 70,318,743.58 is: 97,039,880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,056,078.46 : 178,097,413.90 = 70,318,743.58 : x
  2. Step 2: Convert to fraction form
    129,056,078.46/178,097,413.90 = 70,318,743.58/x
  3. Step 3: Cross multiply
    129,056,078.46x = 178,097,413.90 × 70,318,743.58
  4. Step 4: Simplify right side
    129,056,078.46x = 12,523,586,379,958,702
  5. Step 5: Solve for x
    x = 12,523,586,379,958,702/129,056,078.46
  6. Step 6: Final answer
    x = 97,039,880.10

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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.