Finding the Fourth Proportional to 239,565,762.23, 330,601,748.12 and 129,557,475.23
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Solution
The fourth proportional to 239,565,762.23, 330,601,748.12 and 129,557,475.23 is: 178,789,854.58
Step by Step Solution
- Step 1: Write the proportion equation
239,565,762.23 : 330,601,748.12 = 129,557,475.23 : x - Step 2: Convert to fraction form
239,565,762.23/330,601,748.12 = 129,557,475.23/x - Step 3: Cross multiply
239,565,762.23x = 330,601,748.12 × 129,557,475.23 - Step 4: Simplify right side
239,565,762.23x = 42,831,927,790,750,800 - Step 5: Solve for x
x = 42,831,927,790,750,800/239,565,762.23 - Step 6: Final answer
x = 178,789,854.58
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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.