Home / 428,501,362,172.74-591,331,976,322.34-235,813,535,097.61

Finding the Fourth Proportional to 428,501,362,172.74, 591,331,976,322.34 and 235,813,535,097.61

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Solution

The fourth proportional to 428,501,362,172.74, 591,331,976,322.34 and 235,813,535,097.61 is: 325,422,731,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,501,362,172.74 : 591,331,976,322.34 = 235,813,535,097.61 : x
  2. Step 2: Convert to fraction form
    428,501,362,172.74/591,331,976,322.34 = 235,813,535,097.61/x
  3. Step 3: Cross multiply
    428,501,362,172.74x = 591,331,976,322.34 × 235,813,535,097.61
  4. Step 4: Simplify right side
    428,501,362,172.74x = 139,444,083,752,827,191,558,144
  5. Step 5: Solve for x
    x = 139,444,083,752,827,191,558,144/428,501,362,172.74
  6. Step 6: Final answer
    x = 325,422,731,553.92

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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.