Finding the Fourth Proportional to 379,540,989.95, 569,389,133.50 and 130,513,905.09
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Solution
The fourth proportional to 379,540,989.95, 569,389,133.50 and 130,513,905.09 is: 195,797,558.89
Step by Step Solution
- Step 1: Write the proportion equation
379,540,989.95 : 569,389,133.50 = 130,513,905.09 : x - Step 2: Convert to fraction form
379,540,989.95/569,389,133.50 = 130,513,905.09/x - Step 3: Cross multiply
379,540,989.95x = 569,389,133.50 × 130,513,905.09 - Step 4: Simplify right side
379,540,989.95x = 74,313,199,328,570,048 - Step 5: Solve for x
x = 74,313,199,328,570,048/379,540,989.95 - Step 6: Final answer
x = 195,797,558.89
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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.