Home / 73,082,043.78-100,845,083.60-40,478,830.98

Finding the Fourth Proportional to 73,082,043.78, 100,845,083.60 and 40,478,830.98

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Solution

The fourth proportional to 73,082,043.78, 100,845,083.60 and 40,478,830.98 is: 55,856,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,082,043.78 : 100,845,083.60 = 40,478,830.98 : x
  2. Step 2: Convert to fraction form
    73,082,043.78/100,845,083.60 = 40,478,830.98/x
  3. Step 3: Cross multiply
    73,082,043.78x = 100,845,083.60 × 40,478,830.98
  4. Step 4: Simplify right side
    73,082,043.78x = 4,082,091,094,208,369.50
  5. Step 5: Solve for x
    x = 4,082,091,094,208,369.50/73,082,043.78
  6. Step 6: Final answer
    x = 55,856,279.92

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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.