Home / 13,665,385.80-18,846,010.13-11,338,587.77

Finding the Fourth Proportional to 13,665,385.80, 18,846,010.13 and 11,338,587.77

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Solution

The fourth proportional to 13,665,385.80, 18,846,010.13 and 11,338,587.77 is: 15,637,109.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665,385.80 : 18,846,010.13 = 11,338,587.77 : x
  2. Step 2: Convert to fraction form
    13,665,385.80/18,846,010.13 = 11,338,587.77/x
  3. Step 3: Cross multiply
    13,665,385.80x = 18,846,010.13 × 11,338,587.77
  4. Step 4: Simplify right side
    13,665,385.80x = 213,687,139,822,391.12
  5. Step 5: Solve for x
    x = 213,687,139,822,391.12/13,665,385.80
  6. Step 6: Final answer
    x = 15,637,109.92

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1.5x scale

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.