Finding the Fourth Proportional to 19,037,688.19, 26,296,653.84 and 15,743,289.40
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Solution
The fourth proportional to 19,037,688.19, 26,296,653.84 and 15,743,289.40 is: 21,746,118.94
Step by Step Solution
- Step 1: Write the proportion equation
19,037,688.19 : 26,296,653.84 = 15,743,289.40 : x - Step 2: Convert to fraction form
19,037,688.19/26,296,653.84 = 15,743,289.40/x - Step 3: Cross multiply
19,037,688.19x = 26,296,653.84 × 15,743,289.40 - Step 4: Simplify right side
19,037,688.19x = 413,995,831,654,741.31 - Step 5: Solve for x
x = 413,995,831,654,741.31/19,037,688.19 - Step 6: Final answer
x = 21,746,118.94
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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.