Finding the Fourth Proportional to 38,029,854.70, 52,482,387.50 and 21,509,655.99
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Solution
The fourth proportional to 38,029,854.70, 52,482,387.50 and 21,509,655.99 is: 29,683,997.21
Step by Step Solution
- Step 1: Write the proportion equation
38,029,854.70 : 52,482,387.50 = 21,509,655.99 : x - Step 2: Convert to fraction form
38,029,854.70/52,482,387.50 = 21,509,655.99/x - Step 3: Cross multiply
38,029,854.70x = 52,482,387.50 × 21,509,655.99 - Step 4: Simplify right side
38,029,854.70x = 1,128,878,100,658,876 - Step 5: Solve for x
x = 1,128,878,100,658,876/38,029,854.70 - Step 6: Final answer
x = 29,683,997.21
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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.