Home / 13,886,143.31-19,162,663.75-7,774,790.51

Finding the Fourth Proportional to 13,886,143.31, 19,162,663.75 and 7,774,790.51

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Solution

The fourth proportional to 13,886,143.31, 19,162,663.75 and 7,774,790.51 is: 10,729,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886,143.31 : 19,162,663.75 = 7,774,790.51 : x
  2. Step 2: Convert to fraction form
    13,886,143.31/19,162,663.75 = 7,774,790.51/x
  3. Step 3: Cross multiply
    13,886,143.31x = 19,162,663.75 × 7,774,790.51
  4. Step 4: Simplify right side
    13,886,143.31x = 148,985,696,269,821
  5. Step 5: Solve for x
    x = 148,985,696,269,821/13,886,143.31
  6. Step 6: Final answer
    x = 10,729,091.08

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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.