Finding the Fourth Proportional to 287,535,116.90, 430,863,794.66 and 170,720,440.94
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Solution
The fourth proportional to 287,535,116.90, 430,863,794.66 and 170,720,440.94 is: 255,820,081.40
Step by Step Solution
- Step 1: Write the proportion equation
287,535,116.90 : 430,863,794.66 = 170,720,440.94 : x - Step 2: Convert to fraction form
287,535,116.90/430,863,794.66 = 170,720,440.94/x - Step 3: Cross multiply
287,535,116.90x = 430,863,794.66 × 170,720,440.94 - Step 4: Simplify right side
287,535,116.90x = 73,557,257,009,436,816 - Step 5: Solve for x
x = 73,557,257,009,436,816/287,535,116.90 - Step 6: Final answer
x = 255,820,081.40
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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.