Home / 858,253,413.27-1,287,572,025.51-312,994,947.27

Finding the Fourth Proportional to 858,253,413.27, 1,287,572,025.51 and 312,994,947.27

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Solution

The fourth proportional to 858,253,413.27, 1,287,572,025.51 and 312,994,947.27 is: 469,562,406.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,253,413.27 : 1,287,572,025.51 = 312,994,947.27 : x
  2. Step 2: Convert to fraction form
    858,253,413.27/1,287,572,025.51 = 312,994,947.27/x
  3. Step 3: Cross multiply
    858,253,413.27x = 1,287,572,025.51 × 312,994,947.27
  4. Step 4: Simplify right side
    858,253,413.27x = 403,003,538,230,829,504
  5. Step 5: Solve for x
    x = 403,003,538,230,829,504/858,253,413.27
  6. Step 6: Final answer
    x = 469,562,406.63

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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.