Home / 538,401,858.48-742,995,090.36-290,883,409.56

Finding the Fourth Proportional to 538,401,858.48, 742,995,090.36 and 290,883,409.56

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Solution

The fourth proportional to 538,401,858.48, 742,995,090.36 and 290,883,409.56 is: 401,419,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,401,858.48 : 742,995,090.36 = 290,883,409.56 : x
  2. Step 2: Convert to fraction form
    538,401,858.48/742,995,090.36 = 290,883,409.56/x
  3. Step 3: Cross multiply
    538,401,858.48x = 742,995,090.36 × 290,883,409.56
  4. Step 4: Simplify right side
    538,401,858.48x = 216,124,945,170,257,088
  5. Step 5: Solve for x
    x = 216,124,945,170,257,088/538,401,858.48
  6. Step 6: Final answer
    x = 401,419,389.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.