Finding the Fourth Proportional to 769,591,390.68, 1,154,387,479.68 and 187,325,735.40
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Solution
The fourth proportional to 769,591,390.68, 1,154,387,479.68 and 187,325,735.40 is: 280,988,698.92
Step by Step Solution
- Step 1: Write the proportion equation
769,591,390.68 : 1,154,387,479.68 = 187,325,735.40 : x - Step 2: Convert to fraction form
769,591,390.68/1,154,387,479.68 = 187,325,735.40/x - Step 3: Cross multiply
769,591,390.68x = 1,154,387,479.68 × 187,325,735.40 - Step 4: Simplify right side
769,591,390.68x = 216,246,483,567,608,576 - Step 5: Solve for x
x = 216,246,483,567,608,576/769,591,390.68 - Step 6: Final answer
x = 280,988,698.92
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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.