Home / 129,102,132.62-178,164,676.91-70,368,601.91

Finding the Fourth Proportional to 129,102,132.62, 178,164,676.91 and 70,368,601.91

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Solution

The fourth proportional to 129,102,132.62, 178,164,676.91 and 70,368,601.91 is: 97,110,705.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,102,132.62 : 178,164,676.91 = 70,368,601.91 : x
  2. Step 2: Convert to fraction form
    129,102,132.62/178,164,676.91 = 70,368,601.91/x
  3. Step 3: Cross multiply
    129,102,132.62x = 178,164,676.91 × 70,368,601.91
  4. Step 4: Simplify right side
    129,102,132.62x = 12,537,199,223,903,558
  5. Step 5: Solve for x
    x = 12,537,199,223,903,558/129,102,132.62
  6. Step 6: Final answer
    x = 97,110,705.84

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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.