Finding the Fourth Proportional to 249,131,153.17, 343,803,876.74 and 137,619,683.97
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Solution
The fourth proportional to 249,131,153.17, 343,803,876.74 and 137,619,683.97 is: 189,916,757.75
Step by Step Solution
- Step 1: Write the proportion equation
249,131,153.17 : 343,803,876.74 = 137,619,683.97 : x - Step 2: Convert to fraction form
249,131,153.17/343,803,876.74 = 137,619,683.97/x - Step 3: Cross multiply
249,131,153.17x = 343,803,876.74 × 137,619,683.97 - Step 4: Simplify right side
249,131,153.17x = 47,314,180,864,619,632 - Step 5: Solve for x
x = 47,314,180,864,619,632/249,131,153.17 - Step 6: Final answer
x = 189,916,757.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.