Finding the Fourth Proportional to 274,481,215.53, 378,790,659.06 and 149,038,698.63
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Solution
The fourth proportional to 274,481,215.53, 378,790,659.06 and 149,038,698.63 is: 205,676,977.82
Step by Step Solution
- Step 1: Write the proportion equation
274,481,215.53 : 378,790,659.06 = 149,038,698.63 : x - Step 2: Convert to fraction form
274,481,215.53/378,790,659.06 = 149,038,698.63/x - Step 3: Cross multiply
274,481,215.53x = 378,790,659.06 × 149,038,698.63 - Step 4: Simplify right side
274,481,215.53x = 56,454,466,879,502,416 - Step 5: Solve for x
x = 56,454,466,879,502,416/274,481,215.53 - Step 6: Final answer
x = 205,676,977.82
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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.