Finding the Fourth Proportional to 128,093,900.08, 176,769,665.40 and 69,356,606.80
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Solution
The fourth proportional to 128,093,900.08, 176,769,665.40 and 69,356,606.80 is: 95,712,162.48
Step by Step Solution
- Step 1: Write the proportion equation
128,093,900.08 : 176,769,665.40 = 69,356,606.80 : x - Step 2: Convert to fraction form
128,093,900.08/176,769,665.40 = 69,356,606.80/x - Step 3: Cross multiply
128,093,900.08x = 176,769,665.40 × 69,356,606.80 - Step 4: Simplify right side
128,093,900.08x = 12,260,144,177,315,364 - Step 5: Solve for x
x = 12,260,144,177,315,364/128,093,900.08 - Step 6: Final answer
x = 95,712,162.48
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1.5x scale
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.