Finding the Fourth Proportional to 287,901,824.22, 397,303,320.74 and 155,742,494.96
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Solution
The fourth proportional to 287,901,824.22, 397,303,320.74 and 155,742,494.96 is: 214,923,995.69
Step by Step Solution
- Step 1: Write the proportion equation
287,901,824.22 : 397,303,320.74 = 155,742,494.96 : x - Step 2: Convert to fraction form
287,901,824.22/397,303,320.74 = 155,742,494.96/x - Step 3: Cross multiply
287,901,824.22x = 397,303,320.74 × 155,742,494.96 - Step 4: Simplify right side
287,901,824.22x = 61,877,010,427,940,720 - Step 5: Solve for x
x = 61,877,010,427,940,720/287,901,824.22 - Step 6: Final answer
x = 214,923,995.69
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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.