Finding the Fourth Proportional to 661,627,902.40, 992,441,853.60 and 651,424,235.20
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Solution
The fourth proportional to 661,627,902.40, 992,441,853.60 and 651,424,235.20 is: 977,136,352.80
Step by Step Solution
- Step 1: Write the proportion equation
661,627,902.40 : 992,441,853.60 = 651,424,235.20 : x - Step 2: Convert to fraction form
661,627,902.40/992,441,853.60 = 651,424,235.20/x - Step 3: Cross multiply
661,627,902.40x = 992,441,853.60 × 651,424,235.20 - Step 4: Simplify right side
661,627,902.40x = 646,500,675,461,850,368 - Step 5: Solve for x
x = 646,500,675,461,850,368/661,627,902.40 - Step 6: Final answer
x = 977,136,352.80
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Half scale
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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.