Home / 38,765,107.28-53,496,206.82-21,362,075.30

Finding the Fourth Proportional to 38,765,107.28, 53,496,206.82 and 21,362,075.30

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Solution

The fourth proportional to 38,765,107.28, 53,496,206.82 and 21,362,075.30 is: 29,479,861.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765,107.28 : 53,496,206.82 = 21,362,075.30 : x
  2. Step 2: Convert to fraction form
    38,765,107.28/53,496,206.82 = 21,362,075.30/x
  3. Step 3: Cross multiply
    38,765,107.28x = 53,496,206.82 × 21,362,075.30
  4. Step 4: Simplify right side
    38,765,107.28x = 1,142,789,998,486,954
  5. Step 5: Solve for x
    x = 1,142,789,998,486,954/38,765,107.28
  6. Step 6: Final answer
    x = 29,479,861.62

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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.