Finding the Fourth Proportional to 19,676,364.72, 29,454,012.45 and 12,838,213.68
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Solution
The fourth proportional to 19,676,364.72, 29,454,012.45 and 12,838,213.68 is: 19,217,823.56
Step by Step Solution
- Step 1: Write the proportion equation
19,676,364.72 : 29,454,012.45 = 12,838,213.68 : x - Step 2: Convert to fraction form
19,676,364.72/29,454,012.45 = 12,838,213.68/x - Step 3: Cross multiply
19,676,364.72x = 29,454,012.45 × 12,838,213.68 - Step 4: Simplify right side
19,676,364.72x = 378,136,905,566,480.31 - Step 5: Solve for x
x = 378,136,905,566,480.31/19,676,364.72 - Step 6: Final answer
x = 19,217,823.56
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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.