Finding the Fourth Proportional to 898,344,080.90, 1,347,516,121.35 and 217,539,728.90
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Solution
The fourth proportional to 898,344,080.90, 1,347,516,121.35 and 217,539,728.90 is: 326,309,593.35
Step by Step Solution
- Step 1: Write the proportion equation
898,344,080.90 : 1,347,516,121.35 = 217,539,728.90 : x - Step 2: Convert to fraction form
898,344,080.90/1,347,516,121.35 = 217,539,728.90/x - Step 3: Cross multiply
898,344,080.90x = 1,347,516,121.35 × 217,539,728.90 - Step 4: Simplify right side
898,344,080.90x = 293,138,291,726,858,496 - Step 5: Solve for x
x = 293,138,291,726,858,496/898,344,080.90 - Step 6: Final answer
x = 326,309,593.35
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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.