Finding the Fourth Proportional to 99,574,215.40, 149,302,340.70 and 51,798,471.40
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Solution
The fourth proportional to 99,574,215.40, 149,302,340.70 and 51,798,471.40 is: 77,667,024.48
Step by Step Solution
- Step 1: Write the proportion equation
99,574,215.40 : 149,302,340.70 = 51,798,471.40 : x - Step 2: Convert to fraction form
99,574,215.40/149,302,340.70 = 51,798,471.40/x - Step 3: Cross multiply
99,574,215.40x = 149,302,340.70 × 51,798,471.40 - Step 4: Simplify right side
99,574,215.40x = 7,733,633,024,702,005 - Step 5: Solve for x
x = 7,733,633,024,702,005/99,574,215.40 - Step 6: Final answer
x = 77,667,024.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.