Home / 21,398,214,866.12-29,529,892,160.52-11,753,836,598.96

Finding the Fourth Proportional to 21,398,214,866.12, 29,529,892,160.52 and 11,753,836,598.96

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Solution

The fourth proportional to 21,398,214,866.12, 29,529,892,160.52 and 11,753,836,598.96 is: 16,220,489,859.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398,214,866.12 : 29,529,892,160.52 = 11,753,836,598.96 : x
  2. Step 2: Convert to fraction form
    21,398,214,866.12/29,529,892,160.52 = 11,753,836,598.96/x
  3. Step 3: Cross multiply
    21,398,214,866.12x = 29,529,892,160.52 × 11,753,836,598.96
  4. Step 4: Simplify right side
    21,398,214,866.12x = 347,089,527,239,661,912,064
  5. Step 5: Solve for x
    x = 347,089,527,239,661,912,064/21,398,214,866.12
  6. Step 6: Final answer
    x = 16,220,489,859.14

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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.