Finding the Fourth Proportional to 6,888,478,127.40, 9,509,038,224.66 and 4,631,725,729.80
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Solution
The fourth proportional to 6,888,478,127.40, 9,509,038,224.66 and 4,631,725,729.80 is: 6,393,757,256.14
Step by Step Solution
- Step 1: Write the proportion equation
6,888,478,127.40 : 9,509,038,224.66 = 4,631,725,729.80 : x - Step 2: Convert to fraction form
6,888,478,127.40/9,509,038,224.66 = 4,631,725,729.80/x - Step 3: Cross multiply
6,888,478,127.40x = 9,509,038,224.66 × 4,631,725,729.80 - Step 4: Simplify right side
6,888,478,127.40x = 44,043,257,010,809,438,208 - Step 5: Solve for x
x = 44,043,257,010,809,438,208/6,888,478,127.40 - Step 6: Final answer
x = 6,393,757,256.14
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.