Finding the Fourth Proportional to 42,322,548.35, 58,405,721.97 and 31,707,129.19
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Solution
The fourth proportional to 42,322,548.35, 58,405,721.97 and 31,707,129.19 is: 43,756,291.72
Step by Step Solution
- Step 1: Write the proportion equation
42,322,548.35 : 58,405,721.97 = 31,707,129.19 : x - Step 2: Convert to fraction form
42,322,548.35/58,405,721.97 = 31,707,129.19/x - Step 3: Cross multiply
42,322,548.35x = 58,405,721.97 × 31,707,129.19 - Step 4: Simplify right side
42,322,548.35x = 1,851,877,771,931,312.25 - Step 5: Solve for x
x = 1,851,877,771,931,312.25/42,322,548.35 - Step 6: Final answer
x = 43,756,291.72
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.