Home / 1,329,152,413.20-1,993,728,619.80-755,843,485.20

Finding the Fourth Proportional to 1,329,152,413.20, 1,993,728,619.80 and 755,843,485.20

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Solution

The fourth proportional to 1,329,152,413.20, 1,993,728,619.80 and 755,843,485.20 is: 1,133,765,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,152,413.20 : 1,993,728,619.80 = 755,843,485.20 : x
  2. Step 2: Convert to fraction form
    1,329,152,413.20/1,993,728,619.80 = 755,843,485.20/x
  3. Step 3: Cross multiply
    1,329,152,413.20x = 1,993,728,619.80 × 755,843,485.20
  4. Step 4: Simplify right side
    1,329,152,413.20x = 1,506,946,788,532,617,728
  5. Step 5: Solve for x
    x = 1,506,946,788,532,617,728/1,329,152,413.20
  6. Step 6: Final answer
    x = 1,133,765,227.80

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Double scale
Find fourth proportional to 1,329,152,414.20, 1,993,728,621.30 and 755,843,486.20
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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.