Home / 428,501,362,954.25-591,331,977,398.70-235,813,535,880.05

Finding the Fourth Proportional to 428,501,362,954.25, 591,331,977,398.70 and 235,813,535,880.05

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Solution

The fourth proportional to 428,501,362,954.25, 591,331,977,398.70 and 235,813,535,880.05 is: 325,422,732,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,501,362,954.25 : 591,331,977,398.70 = 235,813,535,880.05 : x
  2. Step 2: Convert to fraction form
    428,501,362,954.25/591,331,977,398.70 = 235,813,535,880.05/x
  3. Step 3: Cross multiply
    428,501,362,954.25x = 591,331,977,398.70 × 235,813,535,880.05
  4. Step 4: Simplify right side
    428,501,362,954.25x = 139,444,084,469,329,238,687,744
  5. Step 5: Solve for x
    x = 139,444,084,469,329,238,687,744/428,501,362,954.25
  6. Step 6: Final answer
    x = 325,422,732,632.52

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1.5x scale

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.