Finding the Fourth Proportional to 992,988,955.68, 1,370,324,753.48 and 575,543,378.18
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Solution
The fourth proportional to 992,988,955.68, 1,370,324,753.48 and 575,543,378.18 is: 794,249,858.78
Step by Step Solution
- Step 1: Write the proportion equation
992,988,955.68 : 1,370,324,753.48 = 575,543,378.18 : x - Step 2: Convert to fraction form
992,988,955.68/1,370,324,753.48 = 575,543,378.18/x - Step 3: Cross multiply
992,988,955.68x = 1,370,324,753.48 × 575,543,378.18 - Step 4: Simplify right side
992,988,955.68x = 788,681,337,821,554,816 - Step 5: Solve for x
x = 788,681,337,821,554,816/992,988,955.68 - Step 6: Final answer
x = 794,249,858.78
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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.