Finding the Fourth Proportional to 51,278,032.84, 70,763,701.26 and 28,074,633.52
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Solution
The fourth proportional to 51,278,032.84, 70,763,701.26 and 28,074,633.52 is: 38,743,002.99
Step by Step Solution
- Step 1: Write the proportion equation
51,278,032.84 : 70,763,701.26 = 28,074,633.52 : x - Step 2: Convert to fraction form
51,278,032.84/70,763,701.26 = 28,074,633.52/x - Step 3: Cross multiply
51,278,032.84x = 70,763,701.26 × 28,074,633.52 - Step 4: Simplify right side
51,278,032.84x = 1,986,664,979,393,262.25 - Step 5: Solve for x
x = 1,986,664,979,393,262.25/51,278,032.84 - Step 6: Final answer
x = 38,743,002.99
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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.