Finding the Fourth Proportional to 1,427,249,236.60, 2,140,873,854.90 and 1,330,394,114.35
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Solution
The fourth proportional to 1,427,249,236.60, 2,140,873,854.90 and 1,330,394,114.35 is: 1,995,591,171.53
Step by Step Solution
- Step 1: Write the proportion equation
1,427,249,236.60 : 2,140,873,854.90 = 1,330,394,114.35 : x - Step 2: Convert to fraction form
1,427,249,236.60/2,140,873,854.90 = 1,330,394,114.35/x - Step 3: Cross multiply
1,427,249,236.60x = 2,140,873,854.90 × 1,330,394,114.35 - Step 4: Simplify right side
1,427,249,236.60x = 2,848,205,976,124,755,968 - Step 5: Solve for x
x = 2,848,205,976,124,755,968/1,427,249,236.60 - Step 6: Final answer
x = 1,995,591,171.53
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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.