Finding the Fourth Proportional to 256,013,926.04, 353,300,148.60 and 138,539,244.08
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Solution
The fourth proportional to 256,013,926.04, 353,300,148.60 and 138,539,244.08 is: 191,184,660.45
Step by Step Solution
- Step 1: Write the proportion equation
256,013,926.04 : 353,300,148.60 = 138,539,244.08 : x - Step 2: Convert to fraction form
256,013,926.04/353,300,148.60 = 138,539,244.08/x - Step 3: Cross multiply
256,013,926.04x = 353,300,148.60 × 138,539,244.08 - Step 4: Simplify right side
256,013,926.04x = 48,945,935,520,395,680 - Step 5: Solve for x
x = 48,945,935,520,395,680/256,013,926.04 - Step 6: Final answer
x = 191,184,660.45
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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.