Finding the Fourth Proportional to 79,749,315.35, 110,074,531.80 and 51,941,320.58
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Solution
The fourth proportional to 79,749,315.35, 110,074,531.80 and 51,941,320.58 is: 71,692,358.97
Step by Step Solution
- Step 1: Write the proportion equation
79,749,315.35 : 110,074,531.80 = 51,941,320.58 : x - Step 2: Convert to fraction form
79,749,315.35/110,074,531.80 = 51,941,320.58/x - Step 3: Cross multiply
79,749,315.35x = 110,074,531.80 × 51,941,320.58 - Step 4: Simplify right side
79,749,315.35x = 5,717,416,543,917,204 - Step 5: Solve for x
x = 5,717,416,543,917,204/79,749,315.35 - Step 6: Final answer
x = 71,692,358.97
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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.