Home / 21,817,395,977.58-30,108,749,328.36-12,661,215,912.66

Finding the Fourth Proportional to 21,817,395,977.58, 30,108,749,328.36 and 12,661,215,912.66

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Solution

The fourth proportional to 21,817,395,977.58, 30,108,749,328.36 and 12,661,215,912.66 is: 17,472,909,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,817,395,977.58 : 30,108,749,328.36 = 12,661,215,912.66 : x
  2. Step 2: Convert to fraction form
    21,817,395,977.58/30,108,749,328.36 = 12,661,215,912.66/x
  3. Step 3: Cross multiply
    21,817,395,977.58x = 30,108,749,328.36 × 12,661,215,912.66
  4. Step 4: Simplify right side
    21,817,395,977.58x = 381,213,376,106,522,738,688
  5. Step 5: Solve for x
    x = 381,213,376,106,522,738,688/21,817,395,977.58
  6. Step 6: Final answer
    x = 17,472,909,072.11

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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.