Home / 21,420,643.08-29,540,220.66-14,065,498.92

Finding the Fourth Proportional to 21,420,643.08, 29,540,220.66 and 14,065,498.92

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Solution

The fourth proportional to 21,420,643.08, 29,540,220.66 and 14,065,498.92 is: 19,397,080.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420,643.08 : 29,540,220.66 = 14,065,498.92 : x
  2. Step 2: Convert to fraction form
    21,420,643.08/29,540,220.66 = 14,065,498.92/x
  3. Step 3: Cross multiply
    21,420,643.08x = 29,540,220.66 × 14,065,498.92
  4. Step 4: Simplify right side
    21,420,643.08x = 415,497,941,789,791.69
  5. Step 5: Solve for x
    x = 415,497,941,789,791.69/21,420,643.08
  6. Step 6: Final answer
    x = 19,397,080.67

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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.