Finding the Fourth Proportional to 147,623,810.80, 221,435,716.20 and 86,149,865.20
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Solution
The fourth proportional to 147,623,810.80, 221,435,716.20 and 86,149,865.20 is: 129,224,797.80
Step by Step Solution
- Step 1: Write the proportion equation
147,623,810.80 : 221,435,716.20 = 86,149,865.20 : x - Step 2: Convert to fraction form
147,623,810.80/221,435,716.20 = 86,149,865.20/x - Step 3: Cross multiply
147,623,810.80x = 221,435,716.20 × 86,149,865.20 - Step 4: Simplify right side
147,623,810.80x = 19,076,657,101,095,456 - Step 5: Solve for x
x = 19,076,657,101,095,456/147,623,810.80 - Step 6: Final answer
x = 129,224,797.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.