Finding the Fourth Proportional to 542,315,615.76, 748,403,749.71 and 304,213,580.55
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Solution
The fourth proportional to 542,315,615.76, 748,403,749.71 and 304,213,580.55 is: 419,819,340.95
Step by Step Solution
- Step 1: Write the proportion equation
542,315,615.76 : 748,403,749.71 = 304,213,580.55 : x - Step 2: Convert to fraction form
542,315,615.76/748,403,749.71 = 304,213,580.55/x - Step 3: Cross multiply
542,315,615.76x = 748,403,749.71 × 304,213,580.55 - Step 4: Simplify right side
542,315,615.76x = 227,674,584,396,325,152 - Step 5: Solve for x
x = 227,674,584,396,325,152/542,315,615.76 - Step 6: Final answer
x = 419,819,340.95
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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.