Finding the Fourth Proportional to 7,810,355,897.79, 11,718,638,126.42 and 2,499,286,373.53
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Solution
The fourth proportional to 7,810,355,897.79, 11,718,638,126.42 and 2,499,286,373.53 is: 3,749,922,918.87
Step by Step Solution
- Step 1: Write the proportion equation
7,810,355,897.79 : 11,718,638,126.42 = 2,499,286,373.53 : x - Step 2: Convert to fraction form
7,810,355,897.79/11,718,638,126.42 = 2,499,286,373.53/x - Step 3: Cross multiply
7,810,355,897.79x = 11,718,638,126.42 × 2,499,286,373.53 - Step 4: Simplify right side
7,810,355,897.79x = 29,288,232,585,661,341,696 - Step 5: Solve for x
x = 29,288,232,585,661,341,696/7,810,355,897.79 - Step 6: Final answer
x = 3,749,922,918.87
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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.