Finding the Fourth Proportional to 980,757,487.58, 1,471,141,649.81 and 243,827,393.08
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Solution
The fourth proportional to 980,757,487.58, 1,471,141,649.81 and 243,827,393.08 is: 365,742,436.70
Step by Step Solution
- Step 1: Write the proportion equation
980,757,487.58 : 1,471,141,649.81 = 243,827,393.08 : x - Step 2: Convert to fraction form
980,757,487.58/1,471,141,649.81 = 243,827,393.08/x - Step 3: Cross multiply
980,757,487.58x = 1,471,141,649.81 × 243,827,393.08 - Step 4: Simplify right side
980,757,487.58x = 358,704,633,320,904,704 - Step 5: Solve for x
x = 358,704,633,320,904,704/980,757,487.58 - Step 6: Final answer
x = 365,742,436.70
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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.