Home / 421,659,474.48-581,858,304.12-256,628,804.40

Finding the Fourth Proportional to 421,659,474.48, 581,858,304.12 and 256,628,804.40

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Solution

The fourth proportional to 421,659,474.48, 581,858,304.12 and 256,628,804.40 is: 354,128,413.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,659,474.48 : 581,858,304.12 = 256,628,804.40 : x
  2. Step 2: Convert to fraction form
    421,659,474.48/581,858,304.12 = 256,628,804.40/x
  3. Step 3: Cross multiply
    421,659,474.48x = 581,858,304.12 × 256,628,804.40
  4. Step 4: Simplify right side
    421,659,474.48x = 149,321,600,916,527,200
  5. Step 5: Solve for x
    x = 149,321,600,916,527,200/421,659,474.48
  6. Step 6: Final answer
    x = 354,128,413.93

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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.