Home / 13,682,134.80-18,881,347.77-7,487,182.80

Finding the Fourth Proportional to 13,682,134.80, 18,881,347.77 and 7,487,182.80

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Solution

The fourth proportional to 13,682,134.80, 18,881,347.77 and 7,487,182.80 is: 10,332,313.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682,134.80 : 18,881,347.77 = 7,487,182.80 : x
  2. Step 2: Convert to fraction form
    13,682,134.80/18,881,347.77 = 7,487,182.80/x
  3. Step 3: Cross multiply
    13,682,134.80x = 18,881,347.77 × 7,487,182.80
  4. Step 4: Simplify right side
    13,682,134.80x = 141,368,102,264,362.34
  5. Step 5: Solve for x
    x = 141,368,102,264,362.34/13,682,134.80
  6. Step 6: Final answer
    x = 10,332,313.22

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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.