Finding the Fourth Proportional to 210,316,857.80, 315,475,286.70 and 174,485,049.80
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Solution
The fourth proportional to 210,316,857.80, 315,475,286.70 and 174,485,049.80 is: 261,727,574.70
Step by Step Solution
- Step 1: Write the proportion equation
210,316,857.80 : 315,475,286.70 = 174,485,049.80 : x - Step 2: Convert to fraction form
210,316,857.80/315,475,286.70 = 174,485,049.80/x - Step 3: Cross multiply
210,316,857.80x = 315,475,286.70 × 174,485,049.80 - Step 4: Simplify right side
210,316,857.80x = 55,045,721,110,518,776 - Step 5: Solve for x
x = 55,045,721,110,518,776/210,316,857.80 - Step 6: Final answer
x = 261,727,574.70
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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.