Finding the Fourth Proportional to 34,156,916.99, 47,137,076.88 and 18,687,259.97
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Solution
The fourth proportional to 34,156,916.99, 47,137,076.88 and 18,687,259.97 is: 25,788,709.51
Step by Step Solution
- Step 1: Write the proportion equation
34,156,916.99 : 47,137,076.88 = 18,687,259.97 : x - Step 2: Convert to fraction form
34,156,916.99/47,137,076.88 = 18,687,259.97/x - Step 3: Cross multiply
34,156,916.99x = 47,137,076.88 × 18,687,259.97 - Step 4: Simplify right side
34,156,916.99x = 880,862,809,882,436.50 - Step 5: Solve for x
x = 880,862,809,882,436.50/34,156,916.99 - Step 6: Final answer
x = 25,788,709.51
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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.