Home / 129,310,206.70-193,965,310.05-115,280,164.30

Finding the Fourth Proportional to 129,310,206.70, 193,965,310.05 and 115,280,164.30

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Solution

The fourth proportional to 129,310,206.70, 193,965,310.05 and 115,280,164.30 is: 172,920,246.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,310,206.70 : 193,965,310.05 = 115,280,164.30 : x
  2. Step 2: Convert to fraction form
    129,310,206.70/193,965,310.05 = 115,280,164.30/x
  3. Step 3: Cross multiply
    129,310,206.70x = 193,965,310.05 × 115,280,164.30
  4. Step 4: Simplify right side
    129,310,206.70x = 22,360,352,811,064,444
  5. Step 5: Solve for x
    x = 22,360,352,811,064,444/129,310,206.70
  6. Step 6: Final answer
    x = 172,920,246.45

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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.