Home / 287,578,413.60-431,367,620.40-271,706,042.40

Finding the Fourth Proportional to 287,578,413.60, 431,367,620.40 and 271,706,042.40

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Solution

The fourth proportional to 287,578,413.60, 431,367,620.40 and 271,706,042.40 is: 407,559,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,578,413.60 : 431,367,620.40 = 271,706,042.40 : x
  2. Step 2: Convert to fraction form
    287,578,413.60/431,367,620.40 = 271,706,042.40/x
  3. Step 3: Cross multiply
    287,578,413.60x = 431,367,620.40 × 271,706,042.40
  4. Step 4: Simplify right side
    287,578,413.60x = 117,205,188,958,389,488
  5. Step 5: Solve for x
    x = 117,205,188,958,389,488/287,578,413.60
  6. Step 6: Final answer
    x = 407,559,063.60

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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.