Finding the Fourth Proportional to 92,820,807.12, 128,085,215.03 and 53,665,107.21
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Solution
The fourth proportional to 92,820,807.12, 128,085,215.03 and 53,665,107.21 is: 74,053,512.46
Step by Step Solution
- Step 1: Write the proportion equation
92,820,807.12 : 128,085,215.03 = 53,665,107.21 : x - Step 2: Convert to fraction form
92,820,807.12/128,085,215.03 = 53,665,107.21/x - Step 3: Cross multiply
92,820,807.12x = 128,085,215.03 × 53,665,107.21 - Step 4: Simplify right side
92,820,807.12x = 6,873,706,796,332,528 - Step 5: Solve for x
x = 6,873,706,796,332,528/92,820,807.12 - Step 6: Final answer
x = 74,053,512.46
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1.5x scale
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.