Finding the Fourth Proportional to 312,623,513.74, 468,343,369.99 and 208,679,296.60
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Solution
The fourth proportional to 312,623,513.74, 468,343,369.99 and 208,679,296.60 is: 312,623,845.36
Step by Step Solution
- Step 1: Write the proportion equation
312,623,513.74 : 468,343,369.99 = 208,679,296.60 : x - Step 2: Convert to fraction form
312,623,513.74/468,343,369.99 = 208,679,296.60/x - Step 3: Cross multiply
312,623,513.74x = 468,343,369.99 × 208,679,296.60 - Step 4: Simplify right side
312,623,513.74x = 97,733,565,016,786,752 - Step 5: Solve for x
x = 97,733,565,016,786,752/312,623,513.74 - Step 6: Final answer
x = 312,623,845.36
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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.