Home / 103,373,623.10-142,656,556.60-56,965,537.82

Finding the Fourth Proportional to 103,373,623.10, 142,656,556.60 and 56,965,537.82

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Solution

The fourth proportional to 103,373,623.10, 142,656,556.60 and 56,965,537.82 is: 78,612,969.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,373,623.10 : 142,656,556.60 = 56,965,537.82 : x
  2. Step 2: Convert to fraction form
    103,373,623.10/142,656,556.60 = 56,965,537.82/x
  3. Step 3: Cross multiply
    103,373,623.10x = 142,656,556.60 × 56,965,537.82
  4. Step 4: Simplify right side
    103,373,623.10x = 8,126,507,470,268,270
  5. Step 5: Solve for x
    x = 8,126,507,470,268,270/103,373,623.10
  6. Step 6: Final answer
    x = 78,612,969.41

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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.