Finding the Fourth Proportional to 19,130,539.20, 28,657,101.60 and 11,919,940.80
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Solution
The fourth proportional to 19,130,539.20, 28,657,101.60 and 11,919,940.80 is: 17,855,793.35
Step by Step Solution
- Step 1: Write the proportion equation
19,130,539.20 : 28,657,101.60 = 11,919,940.80 : x - Step 2: Convert to fraction form
19,130,539.20/28,657,101.60 = 11,919,940.80/x - Step 3: Cross multiply
19,130,539.20x = 28,657,101.60 × 11,919,940.80 - Step 4: Simplify right side
19,130,539.20x = 341,590,954,571,585.31 - Step 5: Solve for x
x = 341,590,954,571,585.31/19,130,539.20 - Step 6: Final answer
x = 17,855,793.35
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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.