Finding the Fourth Proportional to 160,357,202.76, 221,292,939.90 and 87,018,344.76
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Solution
The fourth proportional to 160,357,202.76, 221,292,939.90 and 87,018,344.76 is: 120,085,315.82
Step by Step Solution
- Step 1: Write the proportion equation
160,357,202.76 : 221,292,939.90 = 87,018,344.76 : x - Step 2: Convert to fraction form
160,357,202.76/221,292,939.90 = 87,018,344.76/x - Step 3: Cross multiply
160,357,202.76x = 221,292,939.90 × 87,018,344.76 - Step 4: Simplify right side
160,357,202.76x = 19,256,545,337,172,160 - Step 5: Solve for x
x = 19,256,545,337,172,160/160,357,202.76 - Step 6: Final answer
x = 120,085,315.82
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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.