Finding the Fourth Proportional to 124,765,653.98, 172,165,047.90 and 69,009,874.67
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Solution
The fourth proportional to 124,765,653.98, 172,165,047.90 and 69,009,874.67 is: 95,227,236.02
Step by Step Solution
- Step 1: Write the proportion equation
124,765,653.98 : 172,165,047.90 = 69,009,874.67 : x - Step 2: Convert to fraction form
124,765,653.98/172,165,047.90 = 69,009,874.67/x - Step 3: Cross multiply
124,765,653.98x = 172,165,047.90 × 69,009,874.67 - Step 4: Simplify right side
124,765,653.98x = 11,881,088,378,133,548 - Step 5: Solve for x
x = 11,881,088,378,133,548/124,765,653.98 - Step 6: Final answer
x = 95,227,236.02
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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.