Finding the Fourth Proportional to 6,438,528,076.80, 9,657,792,115.20 and 4,479,423,974.40
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Solution
The fourth proportional to 6,438,528,076.80, 9,657,792,115.20 and 4,479,423,974.40 is: 6,719,135,961.60
Step by Step Solution
- Step 1: Write the proportion equation
6,438,528,076.80 : 9,657,792,115.20 = 4,479,423,974.40 : x - Step 2: Convert to fraction form
6,438,528,076.80/9,657,792,115.20 = 4,479,423,974.40/x - Step 3: Cross multiply
6,438,528,076.80x = 9,657,792,115.20 × 4,479,423,974.40 - Step 4: Simplify right side
6,438,528,076.80x = 43,261,345,540,598,169,600 - Step 5: Solve for x
x = 43,261,345,540,598,169,600/6,438,528,076.80 - Step 6: Final answer
x = 6,719,135,961.60
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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.