Finding the Fourth Proportional to 285,892,741.76, 427,756,929.12 and 169,370,636.96
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Solution
The fourth proportional to 285,892,741.76, 427,756,929.12 and 169,370,636.96 is: 253,414,840.49
Step by Step Solution
- Step 1: Write the proportion equation
285,892,741.76 : 427,756,929.12 = 169,370,636.96 : x - Step 2: Convert to fraction form
285,892,741.76/427,756,929.12 = 169,370,636.96/x - Step 3: Cross multiply
285,892,741.76x = 427,756,929.12 × 169,370,636.96 - Step 4: Simplify right side
285,892,741.76x = 72,449,463,549,107,984 - Step 5: Solve for x
x = 72,449,463,549,107,984/285,892,741.76 - Step 6: Final answer
x = 253,414,840.49
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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.