Finding the Fourth Proportional to 19,331,685.20, 28,996,871.70 and 4,954,893.95
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Solution
The fourth proportional to 19,331,685.20, 28,996,871.70 and 4,954,893.95 is: 7,432,172.76
Step by Step Solution
- Step 1: Write the proportion equation
19,331,685.20 : 28,996,871.70 = 4,954,893.95 : x - Step 2: Convert to fraction form
19,331,685.20/28,996,871.70 = 4,954,893.95/x - Step 3: Cross multiply
19,331,685.20x = 28,996,871.70 × 4,954,893.95 - Step 4: Simplify right side
19,331,685.20x = 143,676,424,155,256.22 - Step 5: Solve for x
x = 143,676,424,155,256.22/19,331,685.20 - Step 6: Final answer
x = 7,432,172.76
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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.