Finding the Fourth Proportional to 212,610,537.12, 293,440,589.76 and 124,499,390.88
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Solution
The fourth proportional to 212,610,537.12, 293,440,589.76 and 124,499,390.88 is: 171,831,439.68
Step by Step Solution
- Step 1: Write the proportion equation
212,610,537.12 : 293,440,589.76 = 124,499,390.88 : x - Step 2: Convert to fraction form
212,610,537.12/293,440,589.76 = 124,499,390.88/x - Step 3: Cross multiply
212,610,537.12x = 293,440,589.76 × 124,499,390.88 - Step 4: Simplify right side
212,610,537.12x = 36,533,174,684,587,960 - Step 5: Solve for x
x = 36,533,174,684,587,960/212,610,537.12 - Step 6: Final answer
x = 171,831,439.68
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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.