Finding the Fourth Proportional to 473,365,489.80, 710,048,234.70 and 128,318,563.20
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Solution
The fourth proportional to 473,365,489.80, 710,048,234.70 and 128,318,563.20 is: 192,477,844.80
Step by Step Solution
- Step 1: Write the proportion equation
473,365,489.80 : 710,048,234.70 = 128,318,563.20 : x - Step 2: Convert to fraction form
473,365,489.80/710,048,234.70 = 128,318,563.20/x - Step 3: Cross multiply
473,365,489.80x = 710,048,234.70 × 128,318,563.20 - Step 4: Simplify right side
473,365,489.80x = 91,112,369,279,400,384 - Step 5: Solve for x
x = 91,112,369,279,400,384/473,365,489.80 - Step 6: Final answer
x = 192,477,844.80
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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.