Finding the Fourth Proportional to 128,373,384.28, 192,552,988.52 and 93,865,148.68
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Solution
The fourth proportional to 128,373,384.28, 192,552,988.52 and 93,865,148.68 is: 140,792,540.43
Step by Step Solution
- Step 1: Write the proportion equation
128,373,384.28 : 192,552,988.52 = 93,865,148.68 : x - Step 2: Convert to fraction form
128,373,384.28/192,552,988.52 = 93,865,148.68/x - Step 3: Cross multiply
128,373,384.28x = 192,552,988.52 × 93,865,148.68 - Step 4: Simplify right side
128,373,384.28x = 18,074,014,896,208,136 - Step 5: Solve for x
x = 18,074,014,896,208,136/128,373,384.28 - Step 6: Final answer
x = 140,792,540.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.