Finding the Fourth Proportional to 1,117,950,854.99, 1,542,751,928.70 and 609,317,968.64
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Solution
The fourth proportional to 1,117,950,854.99, 1,542,751,928.70 and 609,317,968.64 is: 840,847,759.19
Step by Step Solution
- Step 1: Write the proportion equation
1,117,950,854.99 : 1,542,751,928.70 = 609,317,968.64 : x - Step 2: Convert to fraction form
1,117,950,854.99/1,542,751,928.70 = 609,317,968.64/x - Step 3: Cross multiply
1,117,950,854.99x = 1,542,751,928.70 × 609,317,968.64 - Step 4: Simplify right side
1,117,950,854.99x = 940,026,471,303,212,416 - Step 5: Solve for x
x = 940,026,471,303,212,416/1,117,950,854.99 - Step 6: Final answer
x = 840,847,759.19
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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.