Home / 21,278,964.75-29,365,004.16-12,111,607.50

Finding the Fourth Proportional to 21,278,964.75, 29,365,004.16 and 12,111,607.50

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Solution

The fourth proportional to 21,278,964.75, 29,365,004.16 and 12,111,607.50 is: 16,714,037.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,964.75 : 29,365,004.16 = 12,111,607.50 : x
  2. Step 2: Convert to fraction form
    21,278,964.75/29,365,004.16 = 12,111,607.50/x
  3. Step 3: Cross multiply
    21,278,964.75x = 29,365,004.16 × 12,111,607.50
  4. Step 4: Simplify right side
    21,278,964.75x = 355,657,404,621,787.19
  5. Step 5: Solve for x
    x = 355,657,404,621,787.19/21,278,964.75
  6. Step 6: Final answer
    x = 16,714,037.02

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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.