Finding the Fourth Proportional to 39,963,210.84, 55,149,392.70 and 21,628,491.48
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Solution
The fourth proportional to 39,963,210.84, 55,149,392.70 and 21,628,491.48 is: 29,847,405.78
Step by Step Solution
- Step 1: Write the proportion equation
39,963,210.84 : 55,149,392.70 = 21,628,491.48 : x - Step 2: Convert to fraction form
39,963,210.84/55,149,392.70 = 21,628,491.48/x - Step 3: Cross multiply
39,963,210.84x = 55,149,392.70 × 21,628,491.48 - Step 4: Simplify right side
39,963,210.84x = 1,192,798,170,139,124.25 - Step 5: Solve for x
x = 1,192,798,170,139,124.25/39,963,210.84 - Step 6: Final answer
x = 29,847,405.78
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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.