Finding the Fourth Proportional to 1,631,543,139,031.60, 2,251,536,531,682.50 and 889,966,135,678.60
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Solution
The fourth proportional to 1,631,543,139,031.60, 2,251,536,531,682.50 and 889,966,135,678.60 is: 1,228,157,085,463.29
Step by Step Solution
- Step 1: Write the proportion equation
1,631,543,139,031.60 : 2,251,536,531,682.50 = 889,966,135,678.60 : x - Step 2: Convert to fraction form
1,631,543,139,031.60/2,251,536,531,682.50 = 889,966,135,678.60/x - Step 3: Cross multiply
1,631,543,139,031.60x = 2,251,536,531,682.50 × 889,966,135,678.60 - Step 4: Simplify right side
1,631,543,139,031.60x = 2,003,791,266,440,672,333,266,944 - Step 5: Solve for x
x = 2,003,791,266,440,672,333,266,944/1,631,543,139,031.60 - Step 6: Final answer
x = 1,228,157,085,463.29
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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.