Finding the Fourth Proportional to 314,930,408.70, 472,395,613.05 and 84,922,743.90
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Solution
The fourth proportional to 314,930,408.70, 472,395,613.05 and 84,922,743.90 is: 127,384,115.85
Step by Step Solution
- Step 1: Write the proportion equation
314,930,408.70 : 472,395,613.05 = 84,922,743.90 : x - Step 2: Convert to fraction form
314,930,408.70/472,395,613.05 = 84,922,743.90/x - Step 3: Cross multiply
314,930,408.70x = 472,395,613.05 × 84,922,743.90 - Step 4: Simplify right side
314,930,408.70x = 40,117,131,666,528,648 - Step 5: Solve for x
x = 40,117,131,666,528,648/314,930,408.70 - Step 6: Final answer
x = 127,384,115.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.