Finding the Fourth Proportional to 128,452,470.18, 177,265,684.89 and 69,715,657.14
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Solution
The fourth proportional to 128,452,470.18, 177,265,684.89 and 69,715,657.14 is: 96,208,299.41
Step by Step Solution
- Step 1: Write the proportion equation
128,452,470.18 : 177,265,684.89 = 69,715,657.14 : x - Step 2: Convert to fraction form
128,452,470.18/177,265,684.89 = 69,715,657.14/x - Step 3: Cross multiply
128,452,470.18x = 177,265,684.89 × 69,715,657.14 - Step 4: Simplify right side
128,452,470.18x = 12,358,193,710,478,518 - Step 5: Solve for x
x = 12,358,193,710,478,518/128,452,470.18 - Step 6: Final answer
x = 96,208,299.41
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.