Finding the Fourth Proportional to 531,567,229.60, 797,350,844.40 and 326,430,128.80
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Solution
The fourth proportional to 531,567,229.60, 797,350,844.40 and 326,430,128.80 is: 489,645,193.20
Step by Step Solution
- Step 1: Write the proportion equation
531,567,229.60 : 797,350,844.40 = 326,430,128.80 : x - Step 2: Convert to fraction form
531,567,229.60/797,350,844.40 = 326,430,128.80/x - Step 3: Cross multiply
531,567,229.60x = 797,350,844.40 × 326,430,128.80 - Step 4: Simplify right side
531,567,229.60x = 260,279,338,836,280,768 - Step 5: Solve for x
x = 260,279,338,836,280,768/531,567,229.60 - Step 6: Final answer
x = 489,645,193.20
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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.