Finding the Fourth Proportional to 1,685,597,675.32, 2,326,129,768.65 and 932,963,125.60
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Solution
The fourth proportional to 1,685,597,675.32, 2,326,129,768.65 and 932,963,125.60 is: 1,287,491,867.89
Step by Step Solution
- Step 1: Write the proportion equation
1,685,597,675.32 : 2,326,129,768.65 = 932,963,125.60 : x - Step 2: Convert to fraction form
1,685,597,675.32/2,326,129,768.65 = 932,963,125.60/x - Step 3: Cross multiply
1,685,597,675.32x = 2,326,129,768.65 × 932,963,125.60 - Step 4: Simplify right side
1,685,597,675.32x = 2,170,193,299,510,908,928 - Step 5: Solve for x
x = 2,170,193,299,510,908,928/1,685,597,675.32 - Step 6: Final answer
x = 1,287,491,867.89
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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.