Home / 139,968,727.20-209,953,090.80-71,944,279.20

Finding the Fourth Proportional to 139,968,727.20, 209,953,090.80 and 71,944,279.20

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Solution

The fourth proportional to 139,968,727.20, 209,953,090.80 and 71,944,279.20 is: 107,916,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,727.20 : 209,953,090.80 = 71,944,279.20 : x
  2. Step 2: Convert to fraction form
    139,968,727.20/209,953,090.80 = 71,944,279.20/x
  3. Step 3: Cross multiply
    139,968,727.20x = 209,953,090.80 × 71,944,279.20
  4. Step 4: Simplify right side
    139,968,727.20x = 15,104,923,783,418,152
  5. Step 5: Solve for x
    x = 15,104,923,783,418,152/139,968,727.20
  6. Step 6: Final answer
    x = 107,916,418.80

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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.