Finding the Fourth Proportional to 151,851,468.66, 209,553,909.21 and 82,235,234.58
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Solution
The fourth proportional to 151,851,468.66, 209,553,909.21 and 82,235,234.58 is: 113,484,018.52
Step by Step Solution
- Step 1: Write the proportion equation
151,851,468.66 : 209,553,909.21 = 82,235,234.58 : x - Step 2: Convert to fraction form
151,851,468.66/209,553,909.21 = 82,235,234.58/x - Step 3: Cross multiply
151,851,468.66x = 209,553,909.21 × 82,235,234.58 - Step 4: Simplify right side
151,851,468.66x = 17,232,714,881,040,372 - Step 5: Solve for x
x = 17,232,714,881,040,372/151,851,468.66 - Step 6: Final answer
x = 113,484,018.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.