Home / 30,348,775.70-45,523,163.55-21,101,702.30

Finding the Fourth Proportional to 30,348,775.70, 45,523,163.55 and 21,101,702.30

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Solution

The fourth proportional to 30,348,775.70, 45,523,163.55 and 21,101,702.30 is: 31,652,553.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348,775.70 : 45,523,163.55 = 21,101,702.30 : x
  2. Step 2: Convert to fraction form
    30,348,775.70/45,523,163.55 = 21,101,702.30/x
  3. Step 3: Cross multiply
    30,348,775.70x = 45,523,163.55 × 21,101,702.30
  4. Step 4: Simplify right side
    30,348,775.70x = 960,616,244,986,311.12
  5. Step 5: Solve for x
    x = 960,616,244,986,311.12/30,348,775.70
  6. Step 6: Final answer
    x = 31,652,553.45

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Double scale
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Similar ratio
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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.