Finding the Fourth Proportional to 659,460,467.99, 989,194,113.71 and 386,639,916.23
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Solution
The fourth proportional to 659,460,467.99, 989,194,113.71 and 386,639,916.23 is: 579,961,874.63
Step by Step Solution
- Step 1: Write the proportion equation
659,460,467.99 : 989,194,113.71 = 386,639,916.23 : x - Step 2: Convert to fraction form
659,460,467.99/989,194,113.71 = 386,639,916.23/x - Step 3: Cross multiply
659,460,467.99x = 989,194,113.71 × 386,639,916.23 - Step 4: Simplify right side
659,460,467.99x = 382,461,929,262,033,216 - Step 5: Solve for x
x = 382,461,929,262,033,216/659,460,467.99 - Step 6: Final answer
x = 579,961,874.63
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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.