Finding the Fourth Proportional to 51,288,851.68, 70,778,644.76 and 27,767,394.52
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Solution
The fourth proportional to 51,288,851.68, 70,778,644.76 and 27,767,394.52 is: 38,319,020.37
Step by Step Solution
- Step 1: Write the proportion equation
51,288,851.68 : 70,778,644.76 = 27,767,394.52 : x - Step 2: Convert to fraction form
51,288,851.68/70,778,644.76 = 27,767,394.52/x - Step 3: Cross multiply
51,288,851.68x = 70,778,644.76 × 27,767,394.52 - Step 4: Simplify right side
51,288,851.68x = 1,965,338,552,326,066.75 - Step 5: Solve for x
x = 1,965,338,552,326,066.75/51,288,851.68 - Step 6: Final answer
x = 38,319,020.37
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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.