Home / 30,348,734.70-45,523,102.05-21,101,661.30

Finding the Fourth Proportional to 30,348,734.70, 45,523,102.05 and 21,101,661.30

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Solution

The fourth proportional to 30,348,734.70, 45,523,102.05 and 21,101,661.30 is: 31,652,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348,734.70 : 45,523,102.05 = 21,101,661.30 : x
  2. Step 2: Convert to fraction form
    30,348,734.70/45,523,102.05 = 21,101,661.30/x
  3. Step 3: Cross multiply
    30,348,734.70x = 45,523,102.05 × 21,101,661.30
  4. Step 4: Simplify right side
    30,348,734.70x = 960,613,080,784,435.62
  5. Step 5: Solve for x
    x = 960,613,080,784,435.62/30,348,734.70
  6. Step 6: Final answer
    x = 31,652,491.95

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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.