Finding the Fourth Proportional to 1,051,180,355.96, 1,450,638,290.40 and 581,313,291.20
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Solution
The fourth proportional to 1,051,180,355.96, 1,450,638,290.40 and 581,313,291.20 is: 802,217,539.69
Step by Step Solution
- Step 1: Write the proportion equation
1,051,180,355.96 : 1,450,638,290.40 = 581,313,291.20 : x - Step 2: Convert to fraction form
1,051,180,355.96/1,450,638,290.40 = 581,313,291.20/x - Step 3: Cross multiply
1,051,180,355.96x = 1,450,638,290.40 × 581,313,291.20 - Step 4: Simplify right side
1,051,180,355.96x = 843,275,318,933,165,440 - Step 5: Solve for x
x = 843,275,318,933,165,440/1,051,180,355.96 - Step 6: Final answer
x = 802,217,539.69
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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.