Finding the Fourth Proportional to 287,535,042.40, 430,863,683.28 and 170,720,366.62
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Solution
The fourth proportional to 287,535,042.40, 430,863,683.28 and 170,720,366.62 is: 255,819,970.18
Step by Step Solution
- Step 1: Write the proportion equation
287,535,042.40 : 430,863,683.28 = 170,720,366.62 : x - Step 2: Convert to fraction form
287,535,042.40/430,863,683.28 = 170,720,366.62/x - Step 3: Cross multiply
287,535,042.40x = 430,863,683.28 × 170,720,366.62 - Step 4: Simplify right side
287,535,042.40x = 73,557,205,972,805,168 - Step 5: Solve for x
x = 73,557,205,972,805,168/287,535,042.40 - Step 6: Final answer
x = 255,819,970.18
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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.