Finding the Fourth Proportional to 124,975,300.88, 172,463,988.84 and 69,973,125.68
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Solution
The fourth proportional to 124,975,300.88, 172,463,988.84 and 69,973,125.68 is: 96,561,834.87
Step by Step Solution
- Step 1: Write the proportion equation
124,975,300.88 : 172,463,988.84 = 69,973,125.68 : x - Step 2: Convert to fraction form
124,975,300.88/172,463,988.84 = 69,973,125.68/x - Step 3: Cross multiply
124,975,300.88x = 172,463,988.84 × 69,973,125.68 - Step 4: Simplify right side
124,975,300.88x = 12,067,844,366,375,438 - Step 5: Solve for x
x = 12,067,844,366,375,438/124,975,300.88 - Step 6: Final answer
x = 96,561,834.87
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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.