Finding the Fourth Proportional to 99,221,923.52, 136,895,480.16 and 57,939,035.84
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Solution
The fourth proportional to 99,221,923.52, 136,895,480.16 and 57,939,035.84 is: 79,937,899.31
Step by Step Solution
- Step 1: Write the proportion equation
99,221,923.52 : 136,895,480.16 = 57,939,035.84 : x - Step 2: Convert to fraction form
99,221,923.52/136,895,480.16 = 57,939,035.84/x - Step 3: Cross multiply
99,221,923.52x = 136,895,480.16 × 57,939,035.84 - Step 4: Simplify right side
99,221,923.52x = 7,931,592,131,324,249 - Step 5: Solve for x
x = 7,931,592,131,324,249/99,221,923.52 - Step 6: Final answer
x = 79,937,899.31
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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.