Home / 13,642,182.72-18,825,550.56-7,761,263.13

Finding the Fourth Proportional to 13,642,182.72, 18,825,550.56 and 7,761,263.13

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Solution

The fourth proportional to 13,642,182.72, 18,825,550.56 and 7,761,263.13 is: 10,710,166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642,182.72 : 18,825,550.56 = 7,761,263.13 : x
  2. Step 2: Convert to fraction form
    13,642,182.72/18,825,550.56 = 7,761,263.13/x
  3. Step 3: Cross multiply
    13,642,182.72x = 18,825,550.56 × 7,761,263.13
  4. Step 4: Simplify right side
    13,642,182.72x = 146,110,051,463,278.84
  5. Step 5: Solve for x
    x = 146,110,051,463,278.84/13,642,182.72
  6. Step 6: Final answer
    x = 10,710,166.73

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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.