Home / 13,590,707.27-18,755,178.75-7,479,135.77

Finding the Fourth Proportional to 13,590,707.27, 18,755,178.75 and 7,479,135.77

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Solution

The fourth proportional to 13,590,707.27, 18,755,178.75 and 7,479,135.77 is: 10,321,208.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,707.27 : 18,755,178.75 = 7,479,135.77 : x
  2. Step 2: Convert to fraction form
    13,590,707.27/18,755,178.75 = 7,479,135.77/x
  3. Step 3: Cross multiply
    13,590,707.27x = 18,755,178.75 × 7,479,135.77
  4. Step 4: Simplify right side
    13,590,707.27x = 140,272,528,168,092.98
  5. Step 5: Solve for x
    x = 140,272,528,168,092.98/13,590,707.27
  6. Step 6: Final answer
    x = 10,321,208.85

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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.