Finding the Fourth Proportional to 160,357,101.26, 221,292,799.76 and 87,018,243.26
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Solution
The fourth proportional to 160,357,101.26, 221,292,799.76 and 87,018,243.26 is: 120,085,175.71
Step by Step Solution
- Step 1: Write the proportion equation
160,357,101.26 : 221,292,799.76 = 87,018,243.26 : x - Step 2: Convert to fraction form
160,357,101.26/221,292,799.76 = 87,018,243.26/x - Step 3: Cross multiply
160,357,101.26x = 221,292,799.76 × 87,018,243.26 - Step 4: Simplify right side
160,357,101.26x = 19,256,510,681,202,148 - Step 5: Solve for x
x = 19,256,510,681,202,148/160,357,101.26 - Step 6: Final answer
x = 120,085,175.71
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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.