Home / 1,300,218,687.44-1,950,322,772.10-470,978,261.72

Finding the Fourth Proportional to 1,300,218,687.44, 1,950,322,772.10 and 470,978,261.72

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Solution

The fourth proportional to 1,300,218,687.44, 1,950,322,772.10 and 470,978,261.72 is: 706,465,487.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,218,687.44 : 1,950,322,772.10 = 470,978,261.72 : x
  2. Step 2: Convert to fraction form
    1,300,218,687.44/1,950,322,772.10 = 470,978,261.72/x
  3. Step 3: Cross multiply
    1,300,218,687.44x = 1,950,322,772.10 × 470,978,261.72
  4. Step 4: Simplify right side
    1,300,218,687.44x = 918,559,628,996,589,696
  5. Step 5: Solve for x
    x = 918,559,628,996,589,696/1,300,218,687.44
  6. Step 6: Final answer
    x = 706,465,487.59

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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.