Finding the Fourth Proportional to 128,942,889.93, 177,939,518.99 and 70,204,881.33
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Solution
The fourth proportional to 128,942,889.93, 177,939,518.99 and 70,204,881.33 is: 96,881,827.46
Step by Step Solution
- Step 1: Write the proportion equation
128,942,889.93 : 177,939,518.99 = 70,204,881.33 : x - Step 2: Convert to fraction form
128,942,889.93/177,939,518.99 = 70,204,881.33/x - Step 3: Cross multiply
128,942,889.93x = 177,939,518.99 × 70,204,881.33 - Step 4: Simplify right side
128,942,889.93x = 12,492,222,814,259,208 - Step 5: Solve for x
x = 12,492,222,814,259,208/128,942,889.93 - Step 6: Final answer
x = 96,881,827.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.