Finding the Fourth Proportional to 1,095,917,512.16, 1,512,478,888.29 and 666,785,266.79
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Solution
The fourth proportional to 1,095,917,512.16, 1,512,478,888.29 and 666,785,266.79 is: 920,232,250.92
Step by Step Solution
- Step 1: Write the proportion equation
1,095,917,512.16 : 1,512,478,888.29 = 666,785,266.79 : x - Step 2: Convert to fraction form
1,095,917,512.16/1,512,478,888.29 = 666,785,266.79/x - Step 3: Cross multiply
1,095,917,512.16x = 1,512,478,888.29 × 666,785,266.79 - Step 4: Simplify right side
1,095,917,512.16x = 1,008,498,639,035,127,808 - Step 5: Solve for x
x = 1,008,498,639,035,127,808/1,095,917,512.16 - Step 6: Final answer
x = 920,232,250.92
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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.