Finding the Fourth Proportional to 239,945,637.12, 331,125,298.56 and 129,937,539.84
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Solution
The fourth proportional to 239,945,637.12, 331,125,298.56 and 129,937,539.84 is: 179,313,977.91
Step by Step Solution
- Step 1: Write the proportion equation
239,945,637.12 : 331,125,298.56 = 129,937,539.84 : x - Step 2: Convert to fraction form
239,945,637.12/331,125,298.56 = 129,937,539.84/x - Step 3: Cross multiply
239,945,637.12x = 331,125,298.56 × 129,937,539.84 - Step 4: Simplify right side
239,945,637.12x = 43,025,606,673,671,896 - Step 5: Solve for x
x = 43,025,606,673,671,896/239,945,637.12 - Step 6: Final answer
x = 179,313,977.91
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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.