Finding the Fourth Proportional to 1,428,657,712.08, 1,971,481,007.36 and 793,619,364.48
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Solution
The fourth proportional to 1,428,657,712.08, 1,971,481,007.36 and 793,619,364.48 is: 1,095,157,707.07
Step by Step Solution
- Step 1: Write the proportion equation
1,428,657,712.08 : 1,971,481,007.36 = 793,619,364.48 : x - Step 2: Convert to fraction form
1,428,657,712.08/1,971,481,007.36 = 793,619,364.48/x - Step 3: Cross multiply
1,428,657,712.08x = 1,971,481,007.36 × 793,619,364.48 - Step 4: Simplify right side
1,428,657,712.08x = 1,564,605,504,145,433,344 - Step 5: Solve for x
x = 1,564,605,504,145,433,344/1,428,657,712.08 - Step 6: Final answer
x = 1,095,157,707.07
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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.