Finding the Fourth Proportional to 4,292,352,019.20, 6,438,528,028.80 and 2,979,480,172.80
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Solution
The fourth proportional to 4,292,352,019.20, 6,438,528,028.80 and 2,979,480,172.80 is: 4,469,220,259.20
Step by Step Solution
- Step 1: Write the proportion equation
4,292,352,019.20 : 6,438,528,028.80 = 2,979,480,172.80 : x - Step 2: Convert to fraction form
4,292,352,019.20/6,438,528,028.80 = 2,979,480,172.80/x - Step 3: Cross multiply
4,292,352,019.20x = 6,438,528,028.80 × 2,979,480,172.80 - Step 4: Simplify right side
4,292,352,019.20x = 19,183,466,603,826,667,520 - Step 5: Solve for x
x = 19,183,466,603,826,667,520/4,292,352,019.20 - Step 6: Final answer
x = 4,469,220,259.20
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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.