Finding the Fourth Proportional to 38,643,451.20, 57,972,175.20 and 19,425,844.80
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Solution
The fourth proportional to 38,643,451.20, 57,972,175.20 and 19,425,844.80 is: 29,142,285.26
Step by Step Solution
- Step 1: Write the proportion equation
38,643,451.20 : 57,972,175.20 = 19,425,844.80 : x - Step 2: Convert to fraction form
38,643,451.20/57,972,175.20 = 19,425,844.80/x - Step 3: Cross multiply
38,643,451.20x = 57,972,175.20 × 19,425,844.80 - Step 4: Simplify right side
38,643,451.20x = 1,126,158,478,153,609 - Step 5: Solve for x
x = 1,126,158,478,153,609/38,643,451.20 - Step 6: Final answer
x = 29,142,285.26
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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.