Finding the Fourth Proportional to 21,571,957.20, 32,357,935.80 and 15,548,959.20
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Solution
The fourth proportional to 21,571,957.20, 32,357,935.80 and 15,548,959.20 is: 23,323,438.80
Step by Step Solution
- Step 1: Write the proportion equation
21,571,957.20 : 32,357,935.80 = 15,548,959.20 : x - Step 2: Convert to fraction form
21,571,957.20/32,357,935.80 = 15,548,959.20/x - Step 3: Cross multiply
21,571,957.20x = 32,357,935.80 × 15,548,959.20 - Step 4: Simplify right side
21,571,957.20x = 503,132,223,550,419.38 - Step 5: Solve for x
x = 503,132,223,550,419.38/21,571,957.20 - Step 6: Final answer
x = 23,323,438.80
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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.