Home / 154,886,322.12-213,735,010.96-85,258,103.28

Finding the Fourth Proportional to 154,886,322.12, 213,735,010.96 and 85,258,103.28

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Solution

The fourth proportional to 154,886,322.12, 213,735,010.96 and 85,258,103.28 is: 117,651,716.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,886,322.12 : 213,735,010.96 = 85,258,103.28 : x
  2. Step 2: Convert to fraction form
    154,886,322.12/213,735,010.96 = 85,258,103.28/x
  3. Step 3: Cross multiply
    154,886,322.12x = 213,735,010.96 × 85,258,103.28
  4. Step 4: Simplify right side
    154,886,322.12x = 18,222,641,638,979,612
  5. Step 5: Solve for x
    x = 18,222,641,638,979,612/154,886,322.12
  6. Step 6: Final answer
    x = 117,651,716.37

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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.