Finding the Fourth Proportional to 1,102,009,777.35, 1,520,716,082.54 and 684,313,101.87
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Solution
The fourth proportional to 1,102,009,777.35, 1,520,716,082.54 and 684,313,101.87 is: 944,316,430.66
Step by Step Solution
- Step 1: Write the proportion equation
1,102,009,777.35 : 1,520,716,082.54 = 684,313,101.87 : x - Step 2: Convert to fraction form
1,102,009,777.35/1,520,716,082.54 = 684,313,101.87/x - Step 3: Cross multiply
1,102,009,777.35x = 1,520,716,082.54 × 684,313,101.87 - Step 4: Simplify right side
1,102,009,777.35x = 1,040,645,939,503,120,896 - Step 5: Solve for x
x = 1,040,645,939,503,120,896/1,102,009,777.35 - Step 6: Final answer
x = 944,316,430.66
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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.