Finding the Fourth Proportional to 1,485,127,682.21, 2,227,691,936.12 and 552,328,652.75
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Solution
The fourth proportional to 1,485,127,682.21, 2,227,691,936.12 and 552,328,652.75 is: 828,493,132.64
Step by Step Solution
- Step 1: Write the proportion equation
1,485,127,682.21 : 2,227,691,936.12 = 552,328,652.75 : x - Step 2: Convert to fraction form
1,485,127,682.21/2,227,691,936.12 = 552,328,652.75/x - Step 3: Cross multiply
1,485,127,682.21x = 2,227,691,936.12 × 552,328,652.75 - Step 4: Simplify right side
1,485,127,682.21x = 1,230,418,085,805,298,432 - Step 5: Solve for x
x = 1,230,418,085,805,298,432/1,485,127,682.21 - Step 6: Final answer
x = 828,493,132.64
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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.