Home / 171,720,657.40-257,580,986.10-102,845,903.80

Finding the Fourth Proportional to 171,720,657.40, 257,580,986.10 and 102,845,903.80

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Solution

The fourth proportional to 171,720,657.40, 257,580,986.10 and 102,845,903.80 is: 154,268,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,720,657.40 : 257,580,986.10 = 102,845,903.80 : x
  2. Step 2: Convert to fraction form
    171,720,657.40/257,580,986.10 = 102,845,903.80/x
  3. Step 3: Cross multiply
    171,720,657.40x = 257,580,986.10 × 102,845,903.80
  4. Step 4: Simplify right side
    171,720,657.40x = 26,491,149,317,149,736
  5. Step 5: Solve for x
    x = 26,491,149,317,149,736/171,720,657.40
  6. Step 6: Final answer
    x = 154,268,855.70

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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.