Finding the Fourth Proportional to 299,455,963.40, 448,428,117.90 and 196,663,464.20
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Solution
The fourth proportional to 299,455,963.40, 448,428,117.90 and 196,663,464.20 is: 294,498,817.49
Step by Step Solution
- Step 1: Write the proportion equation
299,455,963.40 : 448,428,117.90 = 196,663,464.20 : x - Step 2: Convert to fraction form
299,455,963.40/448,428,117.90 = 196,663,464.20/x - Step 3: Cross multiply
299,455,963.40x = 448,428,117.90 × 196,663,464.20 - Step 4: Simplify right side
299,455,963.40x = 88,189,427,110,900,016 - Step 5: Solve for x
x = 88,189,427,110,900,016/299,455,963.40 - Step 6: Final answer
x = 294,498,817.49
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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.