Finding the Fourth Proportional to 98,124,156.88, 135,412,244.51 and 54,072,732.09
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Solution
The fourth proportional to 98,124,156.88, 135,412,244.51 and 54,072,732.09 is: 74,620,870.66
Step by Step Solution
- Step 1: Write the proportion equation
98,124,156.88 : 135,412,244.51 = 54,072,732.09 : x - Step 2: Convert to fraction form
98,124,156.88/135,412,244.51 = 54,072,732.09/x - Step 3: Cross multiply
98,124,156.88x = 135,412,244.51 × 54,072,732.09 - Step 4: Simplify right side
98,124,156.88x = 7,322,110,019,094,803 - Step 5: Solve for x
x = 7,322,110,019,094,803/98,124,156.88 - Step 6: Final answer
x = 74,620,870.66
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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.