Home / 124,540,930.50-186,812,062.74-81,681,540.54

Finding the Fourth Proportional to 124,540,930.50, 186,812,062.74 and 81,681,540.54

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Solution

The fourth proportional to 124,540,930.50, 186,812,062.74 and 81,681,540.54 is: 122,522,748.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,540,930.50 : 186,812,062.74 = 81,681,540.54 : x
  2. Step 2: Convert to fraction form
    124,540,930.50/186,812,062.74 = 81,681,540.54/x
  3. Step 3: Cross multiply
    124,540,930.50x = 186,812,062.74 × 81,681,540.54
  4. Step 4: Simplify right side
    124,540,930.50x = 15,259,097,076,058,336
  5. Step 5: Solve for x
    x = 15,259,097,076,058,336/124,540,930.50
  6. Step 6: Final answer
    x = 122,522,748.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.