Finding the Fourth Proportional to 56,270,905.42, 77,652,181.66 and 31,154,134.13
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Solution
The fourth proportional to 56,270,905.42, 77,652,181.66 and 31,154,134.13 is: 42,991,781.72
Step by Step Solution
- Step 1: Write the proportion equation
56,270,905.42 : 77,652,181.66 = 31,154,134.13 : x - Step 2: Convert to fraction form
56,270,905.42/77,652,181.66 = 31,154,134.13/x - Step 3: Cross multiply
56,270,905.42x = 77,652,181.66 × 31,154,134.13 - Step 4: Simplify right side
56,270,905.42x = 2,419,186,482,922,766 - Step 5: Solve for x
x = 2,419,186,482,922,766/56,270,905.42 - Step 6: Final answer
x = 42,991,781.72
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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.