Finding the Fourth Proportional to 128,296,760.90, 177,050,845.74 and 69,559,539.62
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Solution
The fourth proportional to 128,296,760.90, 177,050,845.74 and 69,559,539.62 is: 95,992,878.02
Step by Step Solution
- Step 1: Write the proportion equation
128,296,760.90 : 177,050,845.74 = 69,559,539.62 : x - Step 2: Convert to fraction form
128,296,760.90/177,050,845.74 = 69,559,539.62/x - Step 3: Cross multiply
128,296,760.90x = 177,050,845.74 × 69,559,539.62 - Step 4: Simplify right side
128,296,760.90x = 12,315,575,319,006,040 - Step 5: Solve for x
x = 12,315,575,319,006,040/128,296,760.90 - Step 6: Final answer
x = 95,992,878.02
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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.