Finding the Fourth Proportional to 207,409,881,606.18, 286,313,767,983.69 and 129,233,602,221.63
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Solution
The fourth proportional to 207,409,881,606.18, 286,313,767,983.69 and 129,233,602,221.63 is: 178,397,284,235.65
Step by Step Solution
- Step 1: Write the proportion equation
207,409,881,606.18 : 286,313,767,983.69 = 129,233,602,221.63 : x - Step 2: Convert to fraction form
207,409,881,606.18/286,313,767,983.69 = 129,233,602,221.63/x - Step 3: Cross multiply
207,409,881,606.18x = 286,313,767,983.69 × 129,233,602,221.63 - Step 4: Simplify right side
207,409,881,606.18x = 37,001,359,602,180,258,004,992 - Step 5: Solve for x
x = 37,001,359,602,180,258,004,992/207,409,881,606.18 - Step 6: Final answer
x = 178,397,284,235.65
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1.5x scale
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.