Finding the Fourth Proportional to 653,579,525.76, 901,958,648.36 and 356,241,026.49
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Solution
The fourth proportional to 653,579,525.76, 901,958,648.36 and 356,241,026.49 is: 491,622,919.75
Step by Step Solution
- Step 1: Write the proportion equation
653,579,525.76 : 901,958,648.36 = 356,241,026.49 : x - Step 2: Convert to fraction form
653,579,525.76/901,958,648.36 = 356,241,026.49/x - Step 3: Cross multiply
653,579,525.76x = 901,958,648.36 × 356,241,026.49 - Step 4: Simplify right side
653,579,525.76x = 321,314,674,741,518,144 - Step 5: Solve for x
x = 321,314,674,741,518,144/653,579,525.76 - Step 6: Final answer
x = 491,622,919.75
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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.