Finding the Fourth Proportional to 291,279,799.12, 436,923,484.97 and 97,191,214.31
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Solution
The fourth proportional to 291,279,799.12, 436,923,484.97 and 97,191,214.31 is: 145,788,084.83
Step by Step Solution
- Step 1: Write the proportion equation
291,279,799.12 : 436,923,484.97 = 97,191,214.31 : x - Step 2: Convert to fraction form
291,279,799.12/436,923,484.97 = 97,191,214.31/x - Step 3: Cross multiply
291,279,799.12x = 436,923,484.97 × 97,191,214.31 - Step 4: Simplify right side
291,279,799.12x = 42,465,124,062,120,760 - Step 5: Solve for x
x = 42,465,124,062,120,760/291,279,799.12 - Step 6: Final answer
x = 145,788,084.83
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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.