Finding the Fourth Proportional to 42,397,959.40, 63,596,939.10 and 15,135,036.10
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Solution
The fourth proportional to 42,397,959.40, 63,596,939.10 and 15,135,036.10 is: 22,702,554.15
Step by Step Solution
- Step 1: Write the proportion equation
42,397,959.40 : 63,596,939.10 = 15,135,036.10 : x - Step 2: Convert to fraction form
42,397,959.40/63,596,939.10 = 15,135,036.10/x - Step 3: Cross multiply
42,397,959.40x = 63,596,939.10 × 15,135,036.10 - Step 4: Simplify right side
42,397,959.40x = 962,541,969,128,001.50 - Step 5: Solve for x
x = 962,541,969,128,001.50/42,397,959.40 - Step 6: Final answer
x = 22,702,554.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.