Finding the Fourth Proportional to 81,484,658,580.62, 122,226,959,102.84 and 21,791,769,414.02
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Solution
The fourth proportional to 81,484,658,580.62, 122,226,959,102.84 and 21,791,769,414.02 is: 32,687,646,427.47
Step by Step Solution
- Step 1: Write the proportion equation
81,484,658,580.62 : 122,226,959,102.84 = 21,791,769,414.02 : x - Step 2: Convert to fraction form
81,484,658,580.62/122,226,959,102.84 = 21,791,769,414.02/x - Step 3: Cross multiply
81,484,658,580.62x = 122,226,959,102.84 × 21,791,769,414.02 - Step 4: Simplify right side
81,484,658,580.62x = 2,663,541,708,946,186,174,464 - Step 5: Solve for x
x = 2,663,541,708,946,186,174,464/81,484,658,580.62 - Step 6: Final answer
x = 32,687,646,427.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.