Finding the Fourth Proportional to 848,752,278.30, 1,273,128,417.45 and 808,575,338.70
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Solution
The fourth proportional to 848,752,278.30, 1,273,128,417.45 and 808,575,338.70 is: 1,212,863,008.05
Step by Step Solution
- Step 1: Write the proportion equation
848,752,278.30 : 1,273,128,417.45 = 808,575,338.70 : x - Step 2: Convert to fraction form
848,752,278.30/1,273,128,417.45 = 808,575,338.70/x - Step 3: Cross multiply
848,752,278.30x = 1,273,128,417.45 × 808,575,338.70 - Step 4: Simplify right side
848,752,278.30x = 1,029,420,241,348,228,864 - Step 5: Solve for x
x = 1,029,420,241,348,228,864/848,752,278.30 - Step 6: Final answer
x = 1,212,863,008.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.