Home / 74,128,229.21-102,296,779.22-40,637,648.45

Finding the Fourth Proportional to 74,128,229.21, 102,296,779.22 and 40,637,648.45

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Solution

The fourth proportional to 74,128,229.21, 102,296,779.22 and 40,637,648.45 is: 56,079,857.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,128,229.21 : 102,296,779.22 = 40,637,648.45 : x
  2. Step 2: Convert to fraction form
    74,128,229.21/102,296,779.22 = 40,637,648.45/x
  3. Step 3: Cross multiply
    74,128,229.21x = 102,296,779.22 × 40,637,648.45
  4. Step 4: Simplify right side
    74,128,229.21x = 4,157,100,551,306,437.50
  5. Step 5: Solve for x
    x = 4,157,100,551,306,437.50/74,128,229.21
  6. Step 6: Final answer
    x = 56,079,857.78

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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.