Finding the Fourth Proportional to 215,327,908.37, 297,113,316.81 and 121,227,421.97
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Solution
The fourth proportional to 215,327,908.37, 297,113,316.81 and 121,227,421.97 is: 167,271,774.95
Step by Step Solution
- Step 1: Write the proportion equation
215,327,908.37 : 297,113,316.81 = 121,227,421.97 : x - Step 2: Convert to fraction form
215,327,908.37/297,113,316.81 = 121,227,421.97/x - Step 3: Cross multiply
215,327,908.37x = 297,113,316.81 × 121,227,421.97 - Step 4: Simplify right side
215,327,908.37x = 36,018,281,428,346,600 - Step 5: Solve for x
x = 36,018,281,428,346,600/215,327,908.37 - Step 6: Final answer
x = 167,271,774.95
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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.