Finding the Fourth Proportional to 939,701,487.80, 1,409,552,231.70 and 939,701,487.80
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Solution
The fourth proportional to 939,701,487.80, 1,409,552,231.70 and 939,701,487.80 is: 1,409,552,231.70
Step by Step Solution
- Step 1: Write the proportion equation
939,701,487.80 : 1,409,552,231.70 = 939,701,487.80 : x - Step 2: Convert to fraction form
939,701,487.80/1,409,552,231.70 = 939,701,487.80/x - Step 3: Cross multiply
939,701,487.80x = 1,409,552,231.70 × 939,701,487.80 - Step 4: Simplify right side
939,701,487.80x = 1,324,558,329,260,300,288 - Step 5: Solve for x
x = 1,324,558,329,260,300,288/939,701,487.80 - Step 6: Final answer
x = 1,409,552,231.70
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1.5x scale
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.