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Finding the Fourth Proportional to 13,604,923.82, 18,774,814.03 and 7,409,994.82

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Solution

The fourth proportional to 13,604,923.82, 18,774,814.03 and 7,409,994.82 is: 10,225,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604,923.82 : 18,774,814.03 = 7,409,994.82 : x
  2. Step 2: Convert to fraction form
    13,604,923.82/18,774,814.03 = 7,409,994.82/x
  3. Step 3: Cross multiply
    13,604,923.82x = 18,774,814.03 × 7,409,994.82
  4. Step 4: Simplify right side
    13,604,923.82x = 139,121,274,643,293.91
  5. Step 5: Solve for x
    x = 139,121,274,643,293.91/13,604,923.82
  6. Step 6: Final answer
    x = 10,225,803.28

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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.