Finding the Fourth Proportional to 1,180,186,199.84, 1,628,870,199.36 and 703,907,132.96
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Solution
The fourth proportional to 1,180,186,199.84, 1,628,870,199.36 and 703,907,132.96 is: 971,519,029.92
Step by Step Solution
- Step 1: Write the proportion equation
1,180,186,199.84 : 1,628,870,199.36 = 703,907,132.96 : x - Step 2: Convert to fraction form
1,180,186,199.84/1,628,870,199.36 = 703,907,132.96/x - Step 3: Cross multiply
1,180,186,199.84x = 1,628,870,199.36 × 703,907,132.96 - Step 4: Simplify right side
1,180,186,199.84x = 1,146,573,351,995,481,216 - Step 5: Solve for x
x = 1,146,573,351,995,481,216/1,180,186,199.84 - Step 6: Final answer
x = 971,519,029.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.