Finding the Fourth Proportional to 187,120,512.10, 258,213,197.79 and 108,798,509.02
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Solution
The fourth proportional to 187,120,512.10, 258,213,197.79 and 108,798,509.02 is: 150,134,320.46
Step by Step Solution
- Step 1: Write the proportion equation
187,120,512.10 : 258,213,197.79 = 108,798,509.02 : x - Step 2: Convert to fraction form
187,120,512.10/258,213,197.79 = 108,798,509.02/x - Step 3: Cross multiply
187,120,512.10x = 258,213,197.79 × 108,798,509.02 - Step 4: Simplify right side
187,120,512.10x = 28,093,210,928,838,356 - Step 5: Solve for x
x = 28,093,210,928,838,356/187,120,512.10 - Step 6: Final answer
x = 150,134,320.46
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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.