Finding the Fourth Proportional to 38,029,853.70, 52,482,386.12 and 21,509,654.99
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Solution
The fourth proportional to 38,029,853.70, 52,482,386.12 and 21,509,654.99 is: 29,683,995.82
Step by Step Solution
- Step 1: Write the proportion equation
38,029,853.70 : 52,482,386.12 = 21,509,654.99 : x - Step 2: Convert to fraction form
38,029,853.70/52,482,386.12 = 21,509,654.99/x - Step 3: Cross multiply
38,029,853.70x = 52,482,386.12 × 21,509,654.99 - Step 4: Simplify right side
38,029,853.70x = 1,128,878,018,123,204.50 - Step 5: Solve for x
x = 1,128,878,018,123,204.50/38,029,853.70 - Step 6: Final answer
x = 29,683,995.82
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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.