Finding the Fourth Proportional to 90,439,688.29, 135,660,352.53 and 25,743,467.92
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Solution
The fourth proportional to 90,439,688.29, 135,660,352.53 and 25,743,467.92 is: 38,615,435.32
Step by Step Solution
- Step 1: Write the proportion equation
90,439,688.29 : 135,660,352.53 = 25,743,467.92 : x - Step 2: Convert to fraction form
90,439,688.29/135,660,352.53 = 25,743,467.92/x - Step 3: Cross multiply
90,439,688.29x = 135,660,352.53 × 25,743,467.92 - Step 4: Simplify right side
90,439,688.29x = 3,492,367,933,371,946 - Step 5: Solve for x
x = 3,492,367,933,371,946/90,439,688.29 - Step 6: Final answer
x = 38,615,435.32
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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.