Finding the Fourth Proportional to 1,428,283,187.87, 1,970,852,316.42 and 793,117,321.97
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Solution
The fourth proportional to 1,428,283,187.87, 1,970,852,316.42 and 793,117,321.97 is: 1,094,402,793.84
Step by Step Solution
- Step 1: Write the proportion equation
1,428,283,187.87 : 1,970,852,316.42 = 793,117,321.97 : x - Step 2: Convert to fraction form
1,428,283,187.87/1,970,852,316.42 = 793,117,321.97/x - Step 3: Cross multiply
1,428,283,187.87x = 1,970,852,316.42 × 793,117,321.97 - Step 4: Simplify right side
1,428,283,187.87x = 1,563,117,111,187,547,392 - Step 5: Solve for x
x = 1,563,117,111,187,547,392/1,428,283,187.87 - Step 6: Final answer
x = 1,094,402,793.84
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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.