Home / 13,721,029.41-18,957,261.51-11,677,638.77

Finding the Fourth Proportional to 13,721,029.41, 18,957,261.51 and 11,677,638.77

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Solution

The fourth proportional to 13,721,029.41, 18,957,261.51 and 11,677,638.77 is: 16,134,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721,029.41 : 18,957,261.51 = 11,677,638.77 : x
  2. Step 2: Convert to fraction form
    13,721,029.41/18,957,261.51 = 11,677,638.77/x
  3. Step 3: Cross multiply
    13,721,029.41x = 18,957,261.51 × 11,677,638.77
  4. Step 4: Simplify right side
    13,721,029.41x = 221,376,051,887,418.47
  5. Step 5: Solve for x
    x = 221,376,051,887,418.47/13,721,029.41
  6. Step 6: Final answer
    x = 16,134,070.21

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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.