Finding the Fourth Proportional to 442,868,408.10, 664,302,612.15 and 151,638,740.10
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Solution
The fourth proportional to 442,868,408.10, 664,302,612.15 and 151,638,740.10 is: 227,458,110.15
Step by Step Solution
- Step 1: Write the proportion equation
442,868,408.10 : 664,302,612.15 = 151,638,740.10 : x - Step 2: Convert to fraction form
442,868,408.10/664,302,612.15 = 151,638,740.10/x - Step 3: Cross multiply
442,868,408.10x = 664,302,612.15 × 151,638,740.10 - Step 4: Simplify right side
442,868,408.10x = 100,734,011,151,564,944 - Step 5: Solve for x
x = 100,734,011,151,564,944/442,868,408.10 - Step 6: Final answer
x = 227,458,110.15
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1.5x scale
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.