Home / 282,404,689.36-389,606,405.16-163,305,274.48

Finding the Fourth Proportional to 282,404,689.36, 389,606,405.16 and 163,305,274.48

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Solution

The fourth proportional to 282,404,689.36, 389,606,405.16 and 163,305,274.48 is: 225,296,474.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,404,689.36 : 389,606,405.16 = 163,305,274.48 : x
  2. Step 2: Convert to fraction form
    282,404,689.36/389,606,405.16 = 163,305,274.48/x
  3. Step 3: Cross multiply
    282,404,689.36x = 389,606,405.16 × 163,305,274.48
  4. Step 4: Simplify right side
    282,404,689.36x = 63,624,780,933,819,888
  5. Step 5: Solve for x
    x = 63,624,780,933,819,888/282,404,689.36
  6. Step 6: Final answer
    x = 225,296,474.64

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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.