Finding the Fourth Proportional to 960,108,585.12, 1,324,956,203.28 and 520,075,431.84
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Solution
The fourth proportional to 960,108,585.12, 1,324,956,203.28 and 520,075,431.84 is: 717,707,538.78
Step by Step Solution
- Step 1: Write the proportion equation
960,108,585.12 : 1,324,956,203.28 = 520,075,431.84 : x - Step 2: Convert to fraction form
960,108,585.12/1,324,956,203.28 = 520,075,431.84/x - Step 3: Cross multiply
960,108,585.12x = 1,324,956,203.28 × 520,075,431.84 - Step 4: Simplify right side
960,108,585.12x = 689,077,169,589,932,800 - Step 5: Solve for x
x = 689,077,169,589,932,800/960,108,585.12 - Step 6: Final answer
x = 717,707,538.78
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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.