Finding the Fourth Proportional to 538,759,533.20, 806,121,427.80 and 383,671,878.80
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Solution
The fourth proportional to 538,759,533.20, 806,121,427.80 and 383,671,878.80 is: 574,070,812.09
Step by Step Solution
- Step 1: Write the proportion equation
538,759,533.20 : 806,121,427.80 = 383,671,878.80 : x - Step 2: Convert to fraction form
538,759,533.20/806,121,427.80 = 383,671,878.80/x - Step 3: Cross multiply
538,759,533.20x = 806,121,427.80 × 383,671,878.80 - Step 4: Simplify right side
538,759,533.20x = 309,286,122,744,964,544 - Step 5: Solve for x
x = 309,286,122,744,964,544/538,759,533.20 - Step 6: Final answer
x = 574,070,812.09
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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.