Finding the Fourth Proportional to 359,480,019.24, 538,896,286.56 and 129,287,235.84
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Solution
The fourth proportional to 359,480,019.24, 538,896,286.56 and 129,287,235.84 is: 193,814,419.62
Step by Step Solution
- Step 1: Write the proportion equation
359,480,019.24 : 538,896,286.56 = 129,287,235.84 : x - Step 2: Convert to fraction form
359,480,019.24/538,896,286.56 = 129,287,235.84/x - Step 3: Cross multiply
359,480,019.24x = 538,896,286.56 × 129,287,235.84 - Step 4: Simplify right side
359,480,019.24x = 69,672,411,293,782,936 - Step 5: Solve for x
x = 69,672,411,293,782,936/359,480,019.24 - Step 6: Final answer
x = 193,814,419.62
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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.