Finding the Fourth Proportional to 212,720,759.33, 293,577,216.57 and 124,688,720.21
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Solution
The fourth proportional to 212,720,759.33, 293,577,216.57 and 124,688,720.21 is: 172,083,662.79
Step by Step Solution
- Step 1: Write the proportion equation
212,720,759.33 : 293,577,216.57 = 124,688,720.21 : x - Step 2: Convert to fraction form
212,720,759.33/293,577,216.57 = 124,688,720.21/x - Step 3: Cross multiply
212,720,759.33x = 293,577,216.57 × 124,688,720.21 - Step 4: Simplify right side
212,720,759.33x = 36,605,767,415,459,416 - Step 5: Solve for x
x = 36,605,767,415,459,416/212,720,759.33 - Step 6: Final answer
x = 172,083,662.79
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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.