Finding the Fourth Proportional to 597,899,686.80, 896,849,530.20 and 442,931,491.20
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Solution
The fourth proportional to 597,899,686.80, 896,849,530.20 and 442,931,491.20 is: 664,397,236.80
Step by Step Solution
- Step 1: Write the proportion equation
597,899,686.80 : 896,849,530.20 = 442,931,491.20 : x - Step 2: Convert to fraction form
597,899,686.80/896,849,530.20 = 442,931,491.20/x - Step 3: Cross multiply
597,899,686.80x = 896,849,530.20 × 442,931,491.20 - Step 4: Simplify right side
597,899,686.80x = 397,242,899,793,505,472 - Step 5: Solve for x
x = 397,242,899,793,505,472/597,899,686.80 - Step 6: Final answer
x = 664,397,236.80
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Double scale
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Similar ratio
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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.