Home / 21,620,511.95-29,836,305.29-11,830,957.32

Finding the Fourth Proportional to 21,620,511.95, 29,836,305.29 and 11,830,957.32

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Solution

The fourth proportional to 21,620,511.95, 29,836,305.29 and 11,830,957.32 is: 16,326,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620,511.95 : 29,836,305.29 = 11,830,957.32 : x
  2. Step 2: Convert to fraction form
    21,620,511.95/29,836,305.29 = 11,830,957.32/x
  3. Step 3: Cross multiply
    21,620,511.95x = 29,836,305.29 × 11,830,957.32
  4. Step 4: Simplify right side
    21,620,511.95x = 352,992,054,413,325.44
  5. Step 5: Solve for x
    x = 352,992,054,413,325.44/21,620,511.95
  6. Step 6: Final answer
    x = 16,326,720.45

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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.