Home / 21,576,208.64-29,772,631.68-11,917,840.64

Finding the Fourth Proportional to 21,576,208.64, 29,772,631.68 and 11,917,840.64

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Solution

The fourth proportional to 21,576,208.64, 29,772,631.68 and 11,917,840.64 is: 16,445,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576,208.64 : 29,772,631.68 = 11,917,840.64 : x
  2. Step 2: Convert to fraction form
    21,576,208.64/29,772,631.68 = 11,917,840.64/x
  3. Step 3: Cross multiply
    21,576,208.64x = 29,772,631.68 × 11,917,840.64
  4. Step 4: Simplify right side
    21,576,208.64x = 354,825,479,795,655.50
  5. Step 5: Solve for x
    x = 354,825,479,795,655.50/21,576,208.64
  6. Step 6: Final answer
    x = 16,445,219.16

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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.