Finding the Fourth Proportional to 128,454,798.11, 177,267,792.43 and 69,717,463.22
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Solution
The fourth proportional to 128,454,798.11, 177,267,792.43 and 69,717,463.22 is: 96,210,192.08
Step by Step Solution
- Step 1: Write the proportion equation
128,454,798.11 : 177,267,792.43 = 69,717,463.22 : x - Step 2: Convert to fraction form
128,454,798.11/177,267,792.43 = 69,717,463.22/x - Step 3: Cross multiply
128,454,798.11x = 177,267,792.43 × 69,717,463.22 - Step 4: Simplify right side
128,454,798.11x = 12,358,660,799,359,436 - Step 5: Solve for x
x = 12,358,660,799,359,436/128,454,798.11 - Step 6: Final answer
x = 96,210,192.08
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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.