Finding the Fourth Proportional to 6,438,528,009.20, 9,657,792,013.80 and 4,479,423,906.80
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Solution
The fourth proportional to 6,438,528,009.20, 9,657,792,013.80 and 4,479,423,906.80 is: 6,719,135,860.20
Step by Step Solution
- Step 1: Write the proportion equation
6,438,528,009.20 : 9,657,792,013.80 = 4,479,423,906.80 : x - Step 2: Convert to fraction form
6,438,528,009.20/9,657,792,013.80 = 4,479,423,906.80/x - Step 3: Cross multiply
6,438,528,009.20x = 9,657,792,013.80 × 4,479,423,906.80 - Step 4: Simplify right side
6,438,528,009.20x = 43,261,344,433,517,830,144 - Step 5: Solve for x
x = 43,261,344,433,517,830,144/6,438,528,009.20 - Step 6: Final answer
x = 6,719,135,860.20
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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.