Finding the Fourth Proportional to 487,293,998.18, 730,889,181.72 and 137,531,418.44
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Solution
The fourth proportional to 487,293,998.18, 730,889,181.72 and 137,531,418.44 is: 206,282,503.49
Step by Step Solution
- Step 1: Write the proportion equation
487,293,998.18 : 730,889,181.72 = 137,531,418.44 : x - Step 2: Convert to fraction form
487,293,998.18/730,889,181.72 = 137,531,418.44/x - Step 3: Cross multiply
487,293,998.18x = 730,889,181.72 × 137,531,418.44 - Step 4: Simplify right side
487,293,998.18x = 100,520,225,880,748,080 - Step 5: Solve for x
x = 100,520,225,880,748,080/487,293,998.18 - Step 6: Final answer
x = 206,282,503.49
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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.