Finding the Fourth Proportional to 1,160,249,480.10, 1,740,374,220.15 and 394,344,584.10
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Solution
The fourth proportional to 1,160,249,480.10, 1,740,374,220.15 and 394,344,584.10 is: 591,516,876.15
Step by Step Solution
- Step 1: Write the proportion equation
1,160,249,480.10 : 1,740,374,220.15 = 394,344,584.10 : x - Step 2: Convert to fraction form
1,160,249,480.10/1,740,374,220.15 = 394,344,584.10/x - Step 3: Cross multiply
1,160,249,480.10x = 1,740,374,220.15 × 394,344,584.10 - Step 4: Simplify right side
1,160,249,480.10x = 686,307,148,023,413,632 - Step 5: Solve for x
x = 686,307,148,023,413,632/1,160,249,480.10 - Step 6: Final answer
x = 591,516,876.15
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Double scale
Find fourth proportional to 1,160,249,481.10, 1,740,374,221.65 and 394,344,585.10
Similar ratio
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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.