Home / 638,801,617.40-958,202,426.10-275,295,973.40

Finding the Fourth Proportional to 638,801,617.40, 958,202,426.10 and 275,295,973.40

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Solution

The fourth proportional to 638,801,617.40, 958,202,426.10 and 275,295,973.40 is: 412,943,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,801,617.40 : 958,202,426.10 = 275,295,973.40 : x
  2. Step 2: Convert to fraction form
    638,801,617.40/958,202,426.10 = 275,295,973.40/x
  3. Step 3: Cross multiply
    638,801,617.40x = 958,202,426.10 × 275,295,973.40
  4. Step 4: Simplify right side
    638,801,617.40x = 263,789,269,607,441,056
  5. Step 5: Solve for x
    x = 263,789,269,607,441,056/638,801,617.40
  6. Step 6: Final answer
    x = 412,943,960.10

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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.