Finding the Fourth Proportional to 874,378,799.12, 1,310,761,075.76 and 437,299,144.40
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Solution
The fourth proportional to 874,378,799.12, 1,310,761,075.76 and 437,299,144.40 is: 655,545,053.84
Step by Step Solution
- Step 1: Write the proportion equation
874,378,799.12 : 1,310,761,075.76 = 437,299,144.40 : x - Step 2: Convert to fraction form
874,378,799.12/1,310,761,075.76 = 437,299,144.40/x - Step 3: Cross multiply
874,378,799.12x = 1,310,761,075.76 × 437,299,144.40 - Step 4: Simplify right side
874,378,799.12x = 573,194,696,942,671,552 - Step 5: Solve for x
x = 573,194,696,942,671,552/874,378,799.12 - Step 6: Final answer
x = 655,545,053.84
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1.5x scale
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.