Finding the Fourth Proportional to 128,385,344.01, 177,156,827.76 and 71,873,184.45
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Solution
The fourth proportional to 128,385,344.01, 177,156,827.76 and 71,873,184.45 is: 99,176,626.87
Step by Step Solution
- Step 1: Write the proportion equation
128,385,344.01 : 177,156,827.76 = 71,873,184.45 : x - Step 2: Convert to fraction form
128,385,344.01/177,156,827.76 = 71,873,184.45/x - Step 3: Cross multiply
128,385,344.01x = 177,156,827.76 × 71,873,184.45 - Step 4: Simplify right side
128,385,344.01x = 12,732,825,358,171,360 - Step 5: Solve for x
x = 12,732,825,358,171,360/128,385,344.01 - Step 6: Final answer
x = 99,176,626.87
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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.