Finding the Fourth Proportional to 69,917,145.49, 96,486,073.13 and 40,565,954.71
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Solution
The fourth proportional to 69,917,145.49, 96,486,073.13 and 40,565,954.71 is: 55,981,256.75
Step by Step Solution
- Step 1: Write the proportion equation
69,917,145.49 : 96,486,073.13 = 40,565,954.71 : x - Step 2: Convert to fraction form
69,917,145.49/96,486,073.13 = 40,565,954.71/x - Step 3: Cross multiply
69,917,145.49x = 96,486,073.13 × 40,565,954.71 - Step 4: Simplify right side
69,917,145.49x = 3,914,049,672,356,312 - Step 5: Solve for x
x = 3,914,049,672,356,312/69,917,145.49 - Step 6: Final answer
x = 55,981,256.75
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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.