Home / 21,382,642.44-29,507,684.40-12,090,068.91

Finding the Fourth Proportional to 21,382,642.44, 29,507,684.40 and 12,090,068.91

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Solution

The fourth proportional to 21,382,642.44, 29,507,684.40 and 12,090,068.91 is: 16,684,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382,642.44 : 29,507,684.40 = 12,090,068.91 : x
  2. Step 2: Convert to fraction form
    21,382,642.44/29,507,684.40 = 12,090,068.91/x
  3. Step 3: Cross multiply
    21,382,642.44x = 29,507,684.40 × 12,090,068.91
  4. Step 4: Simplify right side
    21,382,642.44x = 356,749,937,770,532
  5. Step 5: Solve for x
    x = 356,749,937,770,532/21,382,642.44
  6. Step 6: Final answer
    x = 16,684,090.32

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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.