Finding the Fourth Proportional to 817,831,584.63, 1,128,603,122.69 and 446,550,958.80
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Solution
The fourth proportional to 817,831,584.63, 1,128,603,122.69 and 446,550,958.80 is: 616,237,885.66
Step by Step Solution
- Step 1: Write the proportion equation
817,831,584.63 : 1,128,603,122.69 = 446,550,958.80 : x - Step 2: Convert to fraction form
817,831,584.63/1,128,603,122.69 = 446,550,958.80/x - Step 3: Cross multiply
817,831,584.63x = 1,128,603,122.69 × 446,550,958.80 - Step 4: Simplify right side
817,831,584.63x = 503,978,806,539,660,800 - Step 5: Solve for x
x = 503,978,806,539,660,800/817,831,584.63 - Step 6: Final answer
x = 616,237,885.66
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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.