Finding the Fourth Proportional to 981,241,454.66, 1,354,227,687.44 and 557,918,544.79
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Solution
The fourth proportional to 981,241,454.66, 1,354,227,687.44 and 557,918,544.79 is: 769,992,683.35
Step by Step Solution
- Step 1: Write the proportion equation
981,241,454.66 : 1,354,227,687.44 = 557,918,544.79 : x - Step 2: Convert to fraction form
981,241,454.66/1,354,227,687.44 = 557,918,544.79/x - Step 3: Cross multiply
981,241,454.66x = 1,354,227,687.44 × 557,918,544.79 - Step 4: Simplify right side
981,241,454.66x = 755,548,740,695,666,944 - Step 5: Solve for x
x = 755,548,740,695,666,944/981,241,454.66 - Step 6: Final answer
x = 769,992,683.35
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Double scale
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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.