Finding the Fourth Proportional to 19,086,782.44, 28,657,077.85 and 13,692,492.26
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Solution
The fourth proportional to 19,086,782.44, 28,657,077.85 and 13,692,492.26 is: 20,558,038.95
Step by Step Solution
- Step 1: Write the proportion equation
19,086,782.44 : 28,657,077.85 = 13,692,492.26 : x - Step 2: Convert to fraction form
19,086,782.44/28,657,077.85 = 13,692,492.26/x - Step 3: Cross multiply
19,086,782.44x = 28,657,077.85 × 13,692,492.26 - Step 4: Simplify right side
19,086,782.44x = 392,386,816,706,689.31 - Step 5: Solve for x
x = 392,386,816,706,689.31/19,086,782.44 - Step 6: Final answer
x = 20,558,038.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.