Finding the Fourth Proportional to 380,768,723.76, 571,153,274.64 and 251,346,085.68
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Solution
The fourth proportional to 380,768,723.76, 571,153,274.64 and 251,346,085.68 is: 377,019,253.28
Step by Step Solution
- Step 1: Write the proportion equation
380,768,723.76 : 571,153,274.64 = 251,346,085.68 : x - Step 2: Convert to fraction form
380,768,723.76/571,153,274.64 = 251,346,085.68/x - Step 3: Cross multiply
380,768,723.76x = 571,153,274.64 × 251,346,085.68 - Step 4: Simplify right side
380,768,723.76x = 143,557,139,904,078,016 - Step 5: Solve for x
x = 143,557,139,904,078,016/380,768,723.76 - Step 6: Final answer
x = 377,019,253.28
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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.