Finding the Fourth Proportional to 470,283,785.52, 648,035,338.95 and 363,790,512.59
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Solution
The fourth proportional to 470,283,785.52, 648,035,338.95 and 363,790,512.59 is: 501,291,167.99
Step by Step Solution
- Step 1: Write the proportion equation
470,283,785.52 : 648,035,338.95 = 363,790,512.59 : x - Step 2: Convert to fraction form
470,283,785.52/648,035,338.95 = 363,790,512.59/x - Step 3: Cross multiply
470,283,785.52x = 648,035,338.95 × 363,790,512.59 - Step 4: Simplify right side
470,283,785.52x = 235,749,108,129,814,720 - Step 5: Solve for x
x = 235,749,108,129,814,720/470,283,785.52 - Step 6: Final answer
x = 501,291,167.99
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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.