Finding the Fourth Proportional to 1,179,512,884.18, 1,627,717,535.52 and 643,675,150.99
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Solution
The fourth proportional to 1,179,512,884.18, 1,627,717,535.52 and 643,675,150.99 is: 888,266,117.74
Step by Step Solution
- Step 1: Write the proportion equation
1,179,512,884.18 : 1,627,717,535.52 = 643,675,150.99 : x - Step 2: Convert to fraction form
1,179,512,884.18/1,627,717,535.52 = 643,675,150.99/x - Step 3: Cross multiply
1,179,512,884.18x = 1,627,717,535.52 × 643,675,150.99 - Step 4: Simplify right side
1,179,512,884.18x = 1,047,721,330,449,053,056 - Step 5: Solve for x
x = 1,047,721,330,449,053,056/1,179,512,884.18 - Step 6: Final answer
x = 888,266,117.74
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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.