Finding the Fourth Proportional to 845,716,647.70, 1,167,096,938.24 and 474,446,650.69
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Solution
The fourth proportional to 845,716,647.70, 1,167,096,938.24 and 474,446,650.69 is: 654,740,845.99
Step by Step Solution
- Step 1: Write the proportion equation
845,716,647.70 : 1,167,096,938.24 = 474,446,650.69 : x - Step 2: Convert to fraction form
845,716,647.70/1,167,096,938.24 = 474,446,650.69/x - Step 3: Cross multiply
845,716,647.70x = 1,167,096,938.24 × 474,446,650.69 - Step 4: Simplify right side
845,716,647.70x = 553,725,233,381,155,136 - Step 5: Solve for x
x = 553,725,233,381,155,136/845,716,647.70 - Step 6: Final answer
x = 654,740,845.99
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.