Finding the Fourth Proportional to 486,009,752.58, 670,695,236.28 and 262,991,435.99
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Solution
The fourth proportional to 486,009,752.58, 670,695,236.28 and 262,991,435.99 is: 362,929,143.63
Step by Step Solution
- Step 1: Write the proportion equation
486,009,752.58 : 670,695,236.28 = 262,991,435.99 : x - Step 2: Convert to fraction form
486,009,752.58/670,695,236.28 = 262,991,435.99/x - Step 3: Cross multiply
486,009,752.58x = 670,695,236.28 × 262,991,435.99 - Step 4: Simplify right side
486,009,752.58x = 176,387,103,297,576,064 - Step 5: Solve for x
x = 176,387,103,297,576,064/486,009,752.58 - Step 6: Final answer
x = 362,929,143.63
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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.