Finding the Fourth Proportional to 7,692,386,876.51, 10,615,825,654.79 and 4,259,085,163.28
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Solution
The fourth proportional to 7,692,386,876.51, 10,615,825,654.79 and 4,259,085,163.28 is: 5,877,721,215.54
Step by Step Solution
- Step 1: Write the proportion equation
7,692,386,876.51 : 10,615,825,654.79 = 4,259,085,163.28 : x - Step 2: Convert to fraction form
7,692,386,876.51/10,615,825,654.79 = 4,259,085,163.28/x - Step 3: Cross multiply
7,692,386,876.51x = 10,615,825,654.79 × 4,259,085,163.28 - Step 4: Simplify right side
7,692,386,876.51x = 45,213,705,542,208,905,216 - Step 5: Solve for x
x = 45,213,705,542,208,905,216/7,692,386,876.51 - Step 6: Final answer
x = 5,877,721,215.54
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Double scale
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1.5x scale
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.