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Finding the Fourth Proportional to 30,348,827.20, 45,523,240.80 and 21,101,753.80

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Solution

The fourth proportional to 30,348,827.20, 45,523,240.80 and 21,101,753.80 is: 31,652,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348,827.20 : 45,523,240.80 = 21,101,753.80 : x
  2. Step 2: Convert to fraction form
    30,348,827.20/45,523,240.80 = 21,101,753.80/x
  3. Step 3: Cross multiply
    30,348,827.20x = 45,523,240.80 × 21,101,753.80
  4. Step 4: Simplify right side
    30,348,827.20x = 960,620,219,539,715
  5. Step 5: Solve for x
    x = 960,620,219,539,715/30,348,827.20
  6. Step 6: Final answer
    x = 31,652,630.70

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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.