Home / 40,959,561.60-61,398,008.10-20,457,748.80

Finding the Fourth Proportional to 40,959,561.60, 61,398,008.10 and 20,457,748.80

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Solution

The fourth proportional to 40,959,561.60, 61,398,008.10 and 20,457,748.80 is: 30,665,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,959,561.60 : 61,398,008.10 = 20,457,748.80 : x
  2. Step 2: Convert to fraction form
    40,959,561.60/61,398,008.10 = 20,457,748.80/x
  3. Step 3: Cross multiply
    40,959,561.60x = 61,398,008.10 × 20,457,748.80
  4. Step 4: Simplify right side
    40,959,561.60x = 1,256,065,026,530,165.25
  5. Step 5: Solve for x
    x = 1,256,065,026,530,165.25/40,959,561.60
  6. Step 6: Final answer
    x = 30,665,978.28

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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.