Finding the Fourth Proportional to 172,051,267.40, 258,076,901.10 and 158,912,937.80
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Solution
The fourth proportional to 172,051,267.40, 258,076,901.10 and 158,912,937.80 is: 238,369,406.70
Step by Step Solution
- Step 1: Write the proportion equation
172,051,267.40 : 258,076,901.10 = 158,912,937.80 : x - Step 2: Convert to fraction form
172,051,267.40/258,076,901.10 = 158,912,937.80/x - Step 3: Cross multiply
172,051,267.40x = 258,076,901.10 × 158,912,937.80 - Step 4: Simplify right side
172,051,267.40x = 41,011,758,532,121,056 - Step 5: Solve for x
x = 41,011,758,532,121,056/172,051,267.40 - Step 6: Final answer
x = 238,369,406.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.