Home / 305,948,161.12-422,206,124.88-166,718,492.32

Finding the Fourth Proportional to 305,948,161.12, 422,206,124.88 and 166,718,492.32

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Solution

The fourth proportional to 305,948,161.12, 422,206,124.88 and 166,718,492.32 is: 230,070,245.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,948,161.12 : 422,206,124.88 = 166,718,492.32 : x
  2. Step 2: Convert to fraction form
    305,948,161.12/422,206,124.88 = 166,718,492.32/x
  3. Step 3: Cross multiply
    305,948,161.12x = 422,206,124.88 × 166,718,492.32
  4. Step 4: Simplify right side
    305,948,161.12x = 70,389,568,588,263,240
  5. Step 5: Solve for x
    x = 70,389,568,588,263,240/305,948,161.12
  6. Step 6: Final answer
    x = 230,070,245.66

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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.