Finding the Fourth Proportional to 99,036,028.08, 149,265,901.98 and 85,367,959.10
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Solution
The fourth proportional to 99,036,028.08, 149,265,901.98 and 85,367,959.10 is: 128,665,553.96
Step by Step Solution
- Step 1: Write the proportion equation
99,036,028.08 : 149,265,901.98 = 85,367,959.10 : x - Step 2: Convert to fraction form
99,036,028.08/149,265,901.98 = 85,367,959.10/x - Step 3: Cross multiply
99,036,028.08x = 149,265,901.98 × 85,367,959.10 - Step 4: Simplify right side
99,036,028.08x = 12,742,525,414,506,918 - Step 5: Solve for x
x = 12,742,525,414,506,918/99,036,028.08 - Step 6: Final answer
x = 128,665,553.96
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.