Finding the Fourth Proportional to 109,513,778.75, 151,128,778.15 and 59,953,750.75
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Solution
The fourth proportional to 109,513,778.75, 151,128,778.15 and 59,953,750.75 is: 82,736,046.55
Step by Step Solution
- Step 1: Write the proportion equation
109,513,778.75 : 151,128,778.15 = 59,953,750.75 : x - Step 2: Convert to fraction form
109,513,778.75/151,128,778.15 = 59,953,750.75/x - Step 3: Cross multiply
109,513,778.75x = 151,128,778.15 × 59,953,750.75 - Step 4: Simplify right side
109,513,778.75x = 9,060,737,096,357,146 - Step 5: Solve for x
x = 9,060,737,096,357,146/109,513,778.75 - Step 6: Final answer
x = 82,736,046.55
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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.