Finding the Fourth Proportional to 208,980,714.42, 288,386,122.10 and 134,644,408.25
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Solution
The fourth proportional to 208,980,714.42, 288,386,122.10 and 134,644,408.25 is: 185,804,603.37
Step by Step Solution
- Step 1: Write the proportion equation
208,980,714.42 : 288,386,122.10 = 134,644,408.25 : x - Step 2: Convert to fraction form
208,980,714.42/288,386,122.10 = 134,644,408.25/x - Step 3: Cross multiply
208,980,714.42x = 288,386,122.10 × 134,644,408.25 - Step 4: Simplify right side
208,980,714.42x = 38,829,578,755,551,600 - Step 5: Solve for x
x = 38,829,578,755,551,600/208,980,714.42 - Step 6: Final answer
x = 185,804,603.37
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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.