Home / 129,056,103.23-178,097,448.18-70,318,768.34

Finding the Fourth Proportional to 129,056,103.23, 178,097,448.18 and 70,318,768.34

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Solution

The fourth proportional to 129,056,103.23, 178,097,448.18 and 70,318,768.34 is: 97,039,914.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,056,103.23 : 178,097,448.18 = 70,318,768.34 : x
  2. Step 2: Convert to fraction form
    129,056,103.23/178,097,448.18 = 70,318,768.34/x
  3. Step 3: Cross multiply
    129,056,103.23x = 178,097,448.18 × 70,318,768.34
  4. Step 4: Simplify right side
    129,056,103.23x = 12,523,593,200,828,322
  5. Step 5: Solve for x
    x = 12,523,593,200,828,322/129,056,103.23
  6. Step 6: Final answer
    x = 97,039,914.33

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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.