Finding the Fourth Proportional to 848,752,570.80, 1,273,128,856.20 and 808,575,631.20
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Solution
The fourth proportional to 848,752,570.80, 1,273,128,856.20 and 808,575,631.20 is: 1,212,863,446.80
Step by Step Solution
- Step 1: Write the proportion equation
848,752,570.80 : 1,273,128,856.20 = 808,575,631.20 : x - Step 2: Convert to fraction form
848,752,570.80/1,273,128,856.20 = 808,575,631.20/x - Step 3: Cross multiply
848,752,570.80x = 1,273,128,856.20 × 808,575,631.20 - Step 4: Simplify right side
848,752,570.80x = 1,029,420,968,500,849,152 - Step 5: Solve for x
x = 1,029,420,968,500,849,152/848,752,570.80 - Step 6: Final answer
x = 1,212,863,446.80
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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.