Finding the Fourth Proportional to 1,623,120,171.93, 2,239,910,178.39 and 880,564,234.68
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Solution
The fourth proportional to 1,623,120,171.93, 2,239,910,178.39 and 880,564,234.68 is: 1,215,180,998.98
Step by Step Solution
- Step 1: Write the proportion equation
1,623,120,171.93 : 2,239,910,178.39 = 880,564,234.68 : x - Step 2: Convert to fraction form
1,623,120,171.93/2,239,910,178.39 = 880,564,234.68/x - Step 3: Cross multiply
1,623,120,171.93x = 2,239,910,178.39 × 880,564,234.68 - Step 4: Simplify right side
1,623,120,171.93x = 1,972,384,791,985,932,288 - Step 5: Solve for x
x = 1,972,384,791,985,932,288/1,623,120,171.93 - Step 6: Final answer
x = 1,215,180,998.98
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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.