Finding the Fourth Proportional to 160,357,098.26, 221,292,795.62 and 87,018,240.26
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Solution
The fourth proportional to 160,357,098.26, 221,292,795.62 and 87,018,240.26 is: 120,085,171.57
Step by Step Solution
- Step 1: Write the proportion equation
160,357,098.26 : 221,292,795.62 = 87,018,240.26 : x - Step 2: Convert to fraction form
160,357,098.26/221,292,795.62 = 87,018,240.26/x - Step 3: Cross multiply
160,357,098.26x = 221,292,795.62 × 87,018,240.26 - Step 4: Simplify right side
160,357,098.26x = 19,256,509,657,839,016 - Step 5: Solve for x
x = 19,256,509,657,839,016/160,357,098.26 - Step 6: Final answer
x = 120,085,171.57
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1.5x scale
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.