Finding the Fourth Proportional to 212,720,404.05, 293,576,726.31 and 124,688,364.91
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Solution
The fourth proportional to 212,720,404.05, 293,576,726.31 and 124,688,364.91 is: 172,083,172.48
Step by Step Solution
- Step 1: Write the proportion equation
212,720,404.05 : 293,576,726.31 = 124,688,364.91 : x - Step 2: Convert to fraction form
212,720,404.05/293,576,726.31 = 124,688,364.91/x - Step 3: Cross multiply
212,720,404.05x = 293,576,726.31 × 124,688,364.91 - Step 4: Simplify right side
212,720,404.05x = 36,605,601,979,224,480 - Step 5: Solve for x
x = 36,605,601,979,224,480/212,720,404.05 - Step 6: Final answer
x = 172,083,172.48
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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.