Finding the Fourth Proportional to 275,688,407.99, 380,438,926.45 and 150,237,939.98
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Solution
The fourth proportional to 275,688,407.99, 380,438,926.45 and 150,237,939.98 is: 207,322,320.92
Step by Step Solution
- Step 1: Write the proportion equation
275,688,407.99 : 380,438,926.45 = 150,237,939.98 : x - Step 2: Convert to fraction form
275,688,407.99/380,438,926.45 = 150,237,939.98/x - Step 3: Cross multiply
275,688,407.99x = 380,438,926.45 × 150,237,939.98 - Step 4: Simplify right side
275,688,407.99x = 57,156,360,595,397,344 - Step 5: Solve for x
x = 57,156,360,595,397,344/275,688,407.99 - Step 6: Final answer
x = 207,322,320.92
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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.