Finding the Fourth Proportional to 638,842,023.08, 881,604,648.51 and 345,486,591.08
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Solution
The fourth proportional to 638,842,023.08, 881,604,648.51 and 345,486,591.08 is: 476,772,932.42
Step by Step Solution
- Step 1: Write the proportion equation
638,842,023.08 : 881,604,648.51 = 345,486,591.08 : x - Step 2: Convert to fraction form
638,842,023.08/881,604,648.51 = 345,486,591.08/x - Step 3: Cross multiply
638,842,023.08x = 881,604,648.51 × 345,486,591.08 - Step 4: Simplify right side
638,842,023.08x = 304,582,584,694,001,472 - Step 5: Solve for x
x = 304,582,584,694,001,472/638,842,023.08 - Step 6: Final answer
x = 476,772,932.42
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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.