Finding the Fourth Proportional to 1,383,017,975.13, 1,908,570,555.92 and 747,938,466.92
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Solution
The fourth proportional to 1,383,017,975.13, 1,908,570,555.92 and 747,938,466.92 is: 1,032,158,194.09
Step by Step Solution
- Step 1: Write the proportion equation
1,383,017,975.13 : 1,908,570,555.92 = 747,938,466.92 : x - Step 2: Convert to fraction form
1,383,017,975.13/1,908,570,555.92 = 747,938,466.92/x - Step 3: Cross multiply
1,383,017,975.13x = 1,908,570,555.92 × 747,938,466.92 - Step 4: Simplify right side
1,383,017,975.13x = 1,427,493,335,603,457,024 - Step 5: Solve for x
x = 1,427,493,335,603,457,024/1,383,017,975.13 - Step 6: Final answer
x = 1,032,158,194.09
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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.