Finding the Fourth Proportional to 1,008,925,405.18, 1,392,351,412.92 and 585,506,283.82
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Solution
The fourth proportional to 1,008,925,405.18, 1,392,351,412.92 and 585,506,283.82 is: 808,018,608.08
Step by Step Solution
- Step 1: Write the proportion equation
1,008,925,405.18 : 1,392,351,412.92 = 585,506,283.82 : x - Step 2: Convert to fraction form
1,008,925,405.18/1,392,351,412.92 = 585,506,283.82/x - Step 3: Cross multiply
1,008,925,405.18x = 1,392,351,412.92 × 585,506,283.82 - Step 4: Simplify right side
1,008,925,405.18x = 815,230,501,550,315,648 - Step 5: Solve for x
x = 815,230,501,550,315,648/1,008,925,405.18 - Step 6: Final answer
x = 808,018,608.08
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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.