Finding the Fourth Proportional to 19,511,120.48, 26,881,990.24 and 12,883,941.92
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Solution
The fourth proportional to 19,511,120.48, 26,881,990.24 and 12,883,941.92 is: 17,751,210.20
Step by Step Solution
- Step 1: Write the proportion equation
19,511,120.48 : 26,881,990.24 = 12,883,941.92 : x - Step 2: Convert to fraction form
19,511,120.48/26,881,990.24 = 12,883,941.92/x - Step 3: Cross multiply
19,511,120.48x = 26,881,990.24 × 12,883,941.92 - Step 4: Simplify right side
19,511,120.48x = 346,346,000,946,166.81 - Step 5: Solve for x
x = 346,346,000,946,166.81/19,511,120.48 - Step 6: Final answer
x = 17,751,210.20
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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.