Home / 253,395,651.40-380,237,262.90-136,809,453.76

Finding the Fourth Proportional to 253,395,651.40, 380,237,262.90 and 136,809,453.76

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Solution

The fourth proportional to 253,395,651.40, 380,237,262.90 and 136,809,453.76 is: 205,291,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,395,651.40 : 380,237,262.90 = 136,809,453.76 : x
  2. Step 2: Convert to fraction form
    253,395,651.40/380,237,262.90 = 136,809,453.76/x
  3. Step 3: Cross multiply
    253,395,651.40x = 380,237,262.90 × 136,809,453.76
  4. Step 4: Simplify right side
    253,395,651.40x = 52,020,052,236,546,504
  5. Step 5: Solve for x
    x = 52,020,052,236,546,504/253,395,651.40
  6. Step 6: Final answer
    x = 205,291,811.24

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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.