Finding the Fourth Proportional to 725,747,716.10, 1,088,621,623.70 and 289,354,855.92
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Solution
The fourth proportional to 725,747,716.10, 1,088,621,623.70 and 289,354,855.92 is: 434,032,303.64
Step by Step Solution
- Step 1: Write the proportion equation
725,747,716.10 : 1,088,621,623.70 = 289,354,855.92 : x - Step 2: Convert to fraction form
725,747,716.10/1,088,621,623.70 = 289,354,855.92/x - Step 3: Cross multiply
725,747,716.10x = 1,088,621,623.70 × 289,354,855.92 - Step 4: Simplify right side
725,747,716.10x = 314,997,953,075,663,168 - Step 5: Solve for x
x = 314,997,953,075,663,168/725,747,716.10 - Step 6: Final answer
x = 434,032,303.64
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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.