Finding the Fourth Proportional to 19,573,322.80, 29,385,643.64 and 13,125,250.94
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Solution
The fourth proportional to 19,573,322.80, 29,385,643.64 and 13,125,250.94 is: 19,705,082.82
Step by Step Solution
- Step 1: Write the proportion equation
19,573,322.80 : 29,385,643.64 = 13,125,250.94 : x - Step 2: Convert to fraction form
19,573,322.80/29,385,643.64 = 13,125,250.94/x - Step 3: Cross multiply
19,573,322.80x = 29,385,643.64 × 13,125,250.94 - Step 4: Simplify right side
19,573,322.80x = 385,693,946,808,415 - Step 5: Solve for x
x = 385,693,946,808,415/19,573,322.80 - Step 6: Final answer
x = 19,705,082.82
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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.