Finding the Fourth Proportional to 138,350,669,806.99, 207,535,110,567.08 and 36,249,763,221.21
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Solution
The fourth proportional to 138,350,669,806.99, 207,535,110,567.08 and 36,249,763,221.21 is: 54,377,030,690.49
Step by Step Solution
- Step 1: Write the proportion equation
138,350,669,806.99 : 207,535,110,567.08 = 36,249,763,221.21 : x - Step 2: Convert to fraction form
138,350,669,806.99/207,535,110,567.08 = 36,249,763,221.21/x - Step 3: Cross multiply
138,350,669,806.99x = 207,535,110,567.08 × 36,249,763,221.21 - Step 4: Simplify right side
138,350,669,806.99x = 7,523,098,618,144,287,096,832 - Step 5: Solve for x
x = 7,523,098,618,144,287,096,832/138,350,669,806.99 - Step 6: Final answer
x = 54,377,030,690.49
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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.