Finding the Fourth Proportional to 21,031,872.19, 29,024,071.20 and 11,374,080.19
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Solution
The fourth proportional to 21,031,872.19, 29,024,071.20 and 11,374,080.19 is: 15,696,278.02
Step by Step Solution
- Step 1: Write the proportion equation
21,031,872.19 : 29,024,071.20 = 11,374,080.19 : x - Step 2: Convert to fraction form
21,031,872.19/29,024,071.20 = 11,374,080.19/x - Step 3: Cross multiply
21,031,872.19x = 29,024,071.20 × 11,374,080.19 - Step 4: Simplify right side
21,031,872.19x = 330,122,113,196,509.31 - Step 5: Solve for x
x = 330,122,113,196,509.31/21,031,872.19 - Step 6: Final answer
x = 15,696,278.02
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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.