Finding the Fourth Proportional to 1,135,772,863.12, 1,567,367,599.08 and 614,252,095.12
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Solution
The fourth proportional to 1,135,772,863.12, 1,567,367,599.08 and 614,252,095.12 is: 847,668,458.03
Step by Step Solution
- Step 1: Write the proportion equation
1,135,772,863.12 : 1,567,367,599.08 = 614,252,095.12 : x - Step 2: Convert to fraction form
1,135,772,863.12/1,567,367,599.08 = 614,252,095.12/x - Step 3: Cross multiply
1,135,772,863.12x = 1,567,367,599.08 × 614,252,095.12 - Step 4: Simplify right side
1,135,772,863.12x = 962,758,831,558,094,208 - Step 5: Solve for x
x = 962,758,831,558,094,208/1,135,772,863.12 - Step 6: Final answer
x = 847,668,458.03
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Double scale
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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.