Finding the Fourth Proportional to 981,201,382.08, 1,471,627,320.24 and 390,942,152.88
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Solution
The fourth proportional to 981,201,382.08, 1,471,627,320.24 and 390,942,152.88 is: 586,343,602.16
Step by Step Solution
- Step 1: Write the proportion equation
981,201,382.08 : 1,471,627,320.24 = 390,942,152.88 : x - Step 2: Convert to fraction form
981,201,382.08/1,471,627,320.24 = 390,942,152.88/x - Step 3: Cross multiply
981,201,382.08x = 1,471,627,320.24 × 390,942,152.88 - Step 4: Simplify right side
981,201,382.08x = 575,321,152,811,650,816 - Step 5: Solve for x
x = 575,321,152,811,650,816/981,201,382.08 - Step 6: Final answer
x = 586,343,602.16
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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.