Finding the Fourth Proportional to 291,337,482.74, 402,040,969.33 and 159,175,635.06
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Solution
The fourth proportional to 291,337,482.74, 402,040,969.33 and 159,175,635.06 is: 219,659,777.42
Step by Step Solution
- Step 1: Write the proportion equation
291,337,482.74 : 402,040,969.33 = 159,175,635.06 : x - Step 2: Convert to fraction form
291,337,482.74/402,040,969.33 = 159,175,635.06/x - Step 3: Cross multiply
291,337,482.74x = 402,040,969.33 × 159,175,635.06 - Step 4: Simplify right side
291,337,482.74x = 63,995,126,613,240,728 - Step 5: Solve for x
x = 63,995,126,613,240,728/291,337,482.74 - Step 6: Final answer
x = 219,659,777.42
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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.