Finding the Fourth Proportional to 385,457,437.91, 578,208,584.96 and 109,085,531.87
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Solution
The fourth proportional to 385,457,437.91, 578,208,584.96 and 109,085,531.87 is: 163,634,645.02
Step by Step Solution
- Step 1: Write the proportion equation
385,457,437.91 : 578,208,584.96 = 109,085,531.87 : x - Step 2: Convert to fraction form
385,457,437.91/578,208,584.96 = 109,085,531.87/x - Step 3: Cross multiply
385,457,437.91x = 578,208,584.96 × 109,085,531.87 - Step 4: Simplify right side
385,457,437.91x = 63,074,191,022,161,688 - Step 5: Solve for x
x = 63,074,191,022,161,688/385,457,437.91 - Step 6: Final answer
x = 163,634,645.02
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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.