Home / 168,496,666.40-252,744,999.60-139,775,232.80

Finding the Fourth Proportional to 168,496,666.40, 252,744,999.60 and 139,775,232.80

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Solution

The fourth proportional to 168,496,666.40, 252,744,999.60 and 139,775,232.80 is: 209,662,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,496,666.40 : 252,744,999.60 = 139,775,232.80 : x
  2. Step 2: Convert to fraction form
    168,496,666.40/252,744,999.60 = 139,775,232.80/x
  3. Step 3: Cross multiply
    168,496,666.40x = 252,744,999.60 × 139,775,232.80
  4. Step 4: Simplify right side
    168,496,666.40x = 35,327,491,158,125,908
  5. Step 5: Solve for x
    x = 35,327,491,158,125,908/168,496,666.40
  6. Step 6: Final answer
    x = 209,662,849.20

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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.