Finding the Fourth Proportional to 256,244,700.09, 353,615,925.34 and 138,767,342.01
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Solution
The fourth proportional to 256,244,700.09, 353,615,925.34 and 138,767,342.01 is: 191,497,978.43
Step by Step Solution
- Step 1: Write the proportion equation
256,244,700.09 : 353,615,925.34 = 138,767,342.01 : x - Step 2: Convert to fraction form
256,244,700.09/353,615,925.34 = 138,767,342.01/x - Step 3: Cross multiply
256,244,700.09x = 353,615,925.34 × 138,767,342.01 - Step 4: Simplify right side
256,244,700.09x = 49,070,342,051,838,400 - Step 5: Solve for x
x = 49,070,342,051,838,400/256,244,700.09 - Step 6: Final answer
x = 191,497,978.43
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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.