Finding the Fourth Proportional to 153,776,714.24, 212,212,427.84 and 83,212,324.80
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Solution
The fourth proportional to 153,776,714.24, 212,212,427.84 and 83,212,324.80 is: 114,833,312.44
Step by Step Solution
- Step 1: Write the proportion equation
153,776,714.24 : 212,212,427.84 = 83,212,324.80 : x - Step 2: Convert to fraction form
153,776,714.24/212,212,427.84 = 83,212,324.80/x - Step 3: Cross multiply
153,776,714.24x = 212,212,427.84 × 83,212,324.80 - Step 4: Simplify right side
153,776,714.24x = 17,658,689,472,018,642 - Step 5: Solve for x
x = 17,658,689,472,018,642/153,776,714.24 - Step 6: Final answer
x = 114,833,312.44
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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.