Home / 428,501,363,689.80-591,331,978,413.12-235,813,536,615.46

Finding the Fourth Proportional to 428,501,363,689.80, 591,331,978,413.12 and 235,813,536,615.46

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Solution

The fourth proportional to 428,501,363,689.80, 591,331,978,413.12 and 235,813,536,615.46 is: 325,422,733,647.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,501,363,689.80 : 591,331,978,413.12 = 235,813,536,615.46 : x
  2. Step 2: Convert to fraction form
    428,501,363,689.80/591,331,978,413.12 = 235,813,536,615.46/x
  3. Step 3: Cross multiply
    428,501,363,689.80x = 591,331,978,413.12 × 235,813,536,615.46
  4. Step 4: Simplify right side
    428,501,363,689.80x = 139,444,085,143,414,675,341,312
  5. Step 5: Solve for x
    x = 139,444,085,143,414,675,341,312/428,501,363,689.80
  6. Step 6: Final answer
    x = 325,422,733,647.03

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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.