Finding the Fourth Proportional to 579,219,052.40, 868,828,578.60 and 531,601,938.80
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Solution
The fourth proportional to 579,219,052.40, 868,828,578.60 and 531,601,938.80 is: 797,402,908.20
Step by Step Solution
- Step 1: Write the proportion equation
579,219,052.40 : 868,828,578.60 = 531,601,938.80 : x - Step 2: Convert to fraction form
579,219,052.40/868,828,578.60 = 531,601,938.80/x - Step 3: Cross multiply
579,219,052.40x = 868,828,578.60 × 531,601,938.80 - Step 4: Simplify right side
579,219,052.40x = 461,870,956,868,608,192 - Step 5: Solve for x
x = 461,870,956,868,608,192/579,219,052.40 - Step 6: Final answer
x = 797,402,908.20
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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.