Home / 21,389,111,761.77-29,515,493,024.98-11,872,913,982.17

Finding the Fourth Proportional to 21,389,111,761.77, 29,515,493,024.98 and 11,872,913,982.17

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Solution

The fourth proportional to 21,389,111,761.77, 29,515,493,024.98 and 11,872,913,982.17 is: 16,383,799,090.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389,111,761.77 : 29,515,493,024.98 = 11,872,913,982.17 : x
  2. Step 2: Convert to fraction form
    21,389,111,761.77/29,515,493,024.98 = 11,872,913,982.17/x
  3. Step 3: Cross multiply
    21,389,111,761.77x = 29,515,493,024.98 × 11,872,913,982.17
  4. Step 4: Simplify right side
    21,389,111,761.77x = 350,434,909,826,754,871,296
  5. Step 5: Solve for x
    x = 350,434,909,826,754,871,296/21,389,111,761.77
  6. Step 6: Final answer
    x = 16,383,799,090.39

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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.