Home / 74,128,243.20-102,296,798.52-40,637,662.44

Finding the Fourth Proportional to 74,128,243.20, 102,296,798.52 and 40,637,662.44

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Solution

The fourth proportional to 74,128,243.20, 102,296,798.52 and 40,637,662.44 is: 56,079,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,128,243.20 : 102,296,798.52 = 40,637,662.44 : x
  2. Step 2: Convert to fraction form
    74,128,243.20/102,296,798.52 = 40,637,662.44/x
  3. Step 3: Cross multiply
    74,128,243.20x = 102,296,798.52 × 40,637,662.44
  4. Step 4: Simplify right side
    74,128,243.20x = 4,157,102,766,948,451
  5. Step 5: Solve for x
    x = 4,157,102,766,948,451/74,128,243.20
  6. Step 6: Final answer
    x = 56,079,877.08

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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.