Home / 154,886,281.80-213,734,955.48-85,258,062.96

Finding the Fourth Proportional to 154,886,281.80, 213,734,955.48 and 85,258,062.96

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Solution

The fourth proportional to 154,886,281.80, 213,734,955.48 and 85,258,062.96 is: 117,651,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,886,281.80 : 213,734,955.48 = 85,258,062.96 : x
  2. Step 2: Convert to fraction form
    154,886,281.80/213,734,955.48 = 85,258,062.96/x
  3. Step 3: Cross multiply
    154,886,281.80x = 213,734,955.48 × 85,258,062.96
  4. Step 4: Simplify right side
    154,886,281.80x = 18,222,628,291,066,636
  5. Step 5: Solve for x
    x = 18,222,628,291,066,636/154,886,281.80
  6. Step 6: Final answer
    x = 117,651,660.81

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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.