Finding the Fourth Proportional to 212,286,392.37, 292,967,278.65 and 127,539,433.08
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Solution
The fourth proportional to 212,286,392.37, 292,967,278.65 and 127,539,433.08 is: 176,011,661.48
Step by Step Solution
- Step 1: Write the proportion equation
212,286,392.37 : 292,967,278.65 = 127,539,433.08 : x - Step 2: Convert to fraction form
212,286,392.37/292,967,278.65 = 127,539,433.08/x - Step 3: Cross multiply
212,286,392.37x = 292,967,278.65 × 127,539,433.08 - Step 4: Simplify right side
212,286,392.37x = 37,364,880,630,011,384 - Step 5: Solve for x
x = 37,364,880,630,011,384/212,286,392.37 - Step 6: Final answer
x = 176,011,661.48
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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.