Home / 86,093,612,413.20-129,140,418,619.80-42,013,770,109.20

Finding the Fourth Proportional to 86,093,612,413.20, 129,140,418,619.80 and 42,013,770,109.20

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Solution

The fourth proportional to 86,093,612,413.20, 129,140,418,619.80 and 42,013,770,109.20 is: 63,020,655,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,093,612,413.20 : 129,140,418,619.80 = 42,013,770,109.20 : x
  2. Step 2: Convert to fraction form
    86,093,612,413.20/129,140,418,619.80 = 42,013,770,109.20/x
  3. Step 3: Cross multiply
    86,093,612,413.20x = 129,140,418,619.80 × 42,013,770,109.20
  4. Step 4: Simplify right side
    86,093,612,413.20x = 5,425,675,859,698,127,994,880
  5. Step 5: Solve for x
    x = 5,425,675,859,698,127,994,880/86,093,612,413.20
  6. Step 6: Final answer
    x = 63,020,655,163.80

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1.5x scale

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.