Home / 19,218,990.81-26,551,015.07-12,619,237.17

Finding the Fourth Proportional to 19,218,990.81, 26,551,015.07 and 12,619,237.17

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Solution

The fourth proportional to 19,218,990.81, 26,551,015.07 and 12,619,237.17 is: 17,433,462.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218,990.81 : 26,551,015.07 = 12,619,237.17 : x
  2. Step 2: Convert to fraction form
    19,218,990.81/26,551,015.07 = 12,619,237.17/x
  3. Step 3: Cross multiply
    19,218,990.81x = 26,551,015.07 × 12,619,237.17
  4. Step 4: Simplify right side
    19,218,990.81x = 335,053,556,272,574.12
  5. Step 5: Solve for x
    x = 335,053,556,272,574.12/19,218,990.81
  6. Step 6: Final answer
    x = 17,433,462.54

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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.