Finding the Fourth Proportional to 485,423,173.43, 728,148,326.61 and 157,898,688.12
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Solution
The fourth proportional to 485,423,173.43, 728,148,326.61 and 157,898,688.12 is: 236,852,445.09
Step by Step Solution
- Step 1: Write the proportion equation
485,423,173.43 : 728,148,326.61 = 157,898,688.12 : x - Step 2: Convert to fraction form
485,423,173.43/728,148,326.61 = 157,898,688.12/x - Step 3: Cross multiply
485,423,173.43x = 728,148,326.61 × 157,898,688.12 - Step 4: Simplify right side
485,423,173.43x = 114,973,665,529,089,152 - Step 5: Solve for x
x = 114,973,665,529,089,152/485,423,173.43 - Step 6: Final answer
x = 236,852,445.09
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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.