Finding the Fourth Proportional to 34,156,918.99, 47,137,079.64 and 18,687,261.97
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Solution
The fourth proportional to 34,156,918.99, 47,137,079.64 and 18,687,261.97 is: 25,788,712.27
Step by Step Solution
- Step 1: Write the proportion equation
34,156,918.99 : 47,137,079.64 = 18,687,261.97 : x - Step 2: Convert to fraction form
34,156,918.99/47,137,079.64 = 18,687,261.97/x - Step 3: Cross multiply
34,156,918.99x = 47,137,079.64 × 18,687,261.97 - Step 4: Simplify right side
34,156,918.99x = 880,862,955,733,433.25 - Step 5: Solve for x
x = 880,862,955,733,433.25/34,156,918.99 - Step 6: Final answer
x = 25,788,712.27
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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.