Finding the Fourth Proportional to 848,752,279.30, 1,273,128,418.95 and 808,575,339.70
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Solution
The fourth proportional to 848,752,279.30, 1,273,128,418.95 and 808,575,339.70 is: 1,212,863,009.55
Step by Step Solution
- Step 1: Write the proportion equation
848,752,279.30 : 1,273,128,418.95 = 808,575,339.70 : x - Step 2: Convert to fraction form
848,752,279.30/1,273,128,418.95 = 808,575,339.70/x - Step 3: Cross multiply
848,752,279.30x = 1,273,128,418.95 × 808,575,339.70 - Step 4: Simplify right side
848,752,279.30x = 1,029,420,243,834,220,288 - Step 5: Solve for x
x = 1,029,420,243,834,220,288/848,752,279.30 - Step 6: Final answer
x = 1,212,863,009.55
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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.