Home / 201,075,420.70-301,613,131.05-142,404,334.30

Finding the Fourth Proportional to 201,075,420.70, 301,613,131.05 and 142,404,334.30

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Solution

The fourth proportional to 201,075,420.70, 301,613,131.05 and 142,404,334.30 is: 213,606,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,075,420.70 : 301,613,131.05 = 142,404,334.30 : x
  2. Step 2: Convert to fraction form
    201,075,420.70/301,613,131.05 = 142,404,334.30/x
  3. Step 3: Cross multiply
    201,075,420.70x = 301,613,131.05 × 142,404,334.30
  4. Step 4: Simplify right side
    201,075,420.70x = 42,951,017,143,313,912
  5. Step 5: Solve for x
    x = 42,951,017,143,313,912/201,075,420.70
  6. Step 6: Final answer
    x = 213,606,501.45

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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.