Finding the Fourth Proportional to 868,846,645.80, 1,303,269,968.70 and 773,612,418.60
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Solution
The fourth proportional to 868,846,645.80, 1,303,269,968.70 and 773,612,418.60 is: 1,160,418,627.90
Step by Step Solution
- Step 1: Write the proportion equation
868,846,645.80 : 1,303,269,968.70 = 773,612,418.60 : x - Step 2: Convert to fraction form
868,846,645.80/1,303,269,968.70 = 773,612,418.60/x - Step 3: Cross multiply
868,846,645.80x = 1,303,269,968.70 × 773,612,418.60 - Step 4: Simplify right side
868,846,645.80x = 1,008,225,832,574,753,408 - Step 5: Solve for x
x = 1,008,225,832,574,753,408/868,846,645.80 - Step 6: Final answer
x = 1,160,418,627.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.