Home / 21,257,275.91-29,324,937.47-12,549,615.12

Finding the Fourth Proportional to 21,257,275.91, 29,324,937.47 and 12,549,615.12

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Solution

The fourth proportional to 21,257,275.91, 29,324,937.47 and 12,549,615.12 is: 17,312,504.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,275.91 : 29,324,937.47 = 12,549,615.12 : x
  2. Step 2: Convert to fraction form
    21,257,275.91/29,324,937.47 = 12,549,615.12/x
  3. Step 3: Cross multiply
    21,257,275.91x = 29,324,937.47 × 12,549,615.12
  4. Step 4: Simplify right side
    21,257,275.91x = 368,016,678,603,818.44
  5. Step 5: Solve for x
    x = 368,016,678,603,818.44/21,257,275.91
  6. Step 6: Final answer
    x = 17,312,504.21

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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.