Finding the Fourth Proportional to 77,373,903.18, 115,965,195.30 and 39,046,378.26
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Solution
The fourth proportional to 77,373,903.18, 115,965,195.30 and 39,046,378.26 is: 58,521,293.29
Step by Step Solution
- Step 1: Write the proportion equation
77,373,903.18 : 115,965,195.30 = 39,046,378.26 : x - Step 2: Convert to fraction form
77,373,903.18/115,965,195.30 = 39,046,378.26/x - Step 3: Cross multiply
77,373,903.18x = 115,965,195.30 × 39,046,378.26 - Step 4: Simplify right side
77,373,903.18x = 4,528,020,880,678,574 - Step 5: Solve for x
x = 4,528,020,880,678,574/77,373,903.18 - Step 6: Final answer
x = 58,521,293.29
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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.