Home / 154,886,290.53-213,734,967.53-85,258,071.69

Finding the Fourth Proportional to 154,886,290.53, 213,734,967.53 and 85,258,071.69

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Solution

The fourth proportional to 154,886,290.53, 213,734,967.53 and 85,258,071.69 is: 117,651,672.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,886,290.53 : 213,734,967.53 = 85,258,071.69 : x
  2. Step 2: Convert to fraction form
    154,886,290.53/213,734,967.53 = 85,258,071.69/x
  3. Step 3: Cross multiply
    154,886,290.53x = 213,734,967.53 × 85,258,071.69
  4. Step 4: Simplify right side
    154,886,290.53x = 18,222,631,183,906,272
  5. Step 5: Solve for x
    x = 18,222,631,183,906,272/154,886,290.53
  6. Step 6: Final answer
    x = 117,651,672.86

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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.