Home / 30,299,141.80-45,448,712.70-20,733,203.80

Finding the Fourth Proportional to 30,299,141.80, 45,448,712.70 and 20,733,203.80

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Solution

The fourth proportional to 30,299,141.80, 45,448,712.70 and 20,733,203.80 is: 31,099,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,299,141.80 : 45,448,712.70 = 20,733,203.80 : x
  2. Step 2: Convert to fraction form
    30,299,141.80/45,448,712.70 = 20,733,203.80/x
  3. Step 3: Cross multiply
    30,299,141.80x = 45,448,712.70 × 20,733,203.80
  4. Step 4: Simplify right side
    30,299,141.80x = 942,297,422,856,748.38
  5. Step 5: Solve for x
    x = 942,297,422,856,748.38/30,299,141.80
  6. Step 6: Final answer
    x = 31,099,805.70

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1.5x scale

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.