Finding the Fourth Proportional to 1,290,104,512.60, 1,933,930,804.74 and 822,453,228.76
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Solution
The fourth proportional to 1,290,104,512.60, 1,933,930,804.74 and 822,453,228.76 is: 1,232,898,279.96
Step by Step Solution
- Step 1: Write the proportion equation
1,290,104,512.60 : 1,933,930,804.74 = 822,453,228.76 : x - Step 2: Convert to fraction form
1,290,104,512.60/1,933,930,804.74 = 822,453,228.76/x - Step 3: Cross multiply
1,290,104,512.60x = 1,933,930,804.74 × 822,453,228.76 - Step 4: Simplify right side
1,290,104,512.60x = 1,590,567,634,556,838,144 - Step 5: Solve for x
x = 1,590,567,634,556,838,144/1,290,104,512.60 - Step 6: Final answer
x = 1,232,898,279.96
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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.