Home / 213,129,142.29-294,118,098.17-120,310,451.73

Finding the Fourth Proportional to 213,129,142.29, 294,118,098.17 and 120,310,451.73

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Solution

The fourth proportional to 213,129,142.29, 294,118,098.17 and 120,310,451.73 is: 166,028,356.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,129,142.29 : 294,118,098.17 = 120,310,451.73 : x
  2. Step 2: Convert to fraction form
    213,129,142.29/294,118,098.17 = 120,310,451.73/x
  3. Step 3: Cross multiply
    213,129,142.29x = 294,118,098.17 × 120,310,451.73
  4. Step 4: Simplify right side
    213,129,142.29x = 35,385,481,252,199,636
  5. Step 5: Solve for x
    x = 35,385,481,252,199,636/213,129,142.29
  6. Step 6: Final answer
    x = 166,028,356.67

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1.5x scale

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.