Finding the Fourth Proportional to 129,154,154.24, 178,227,599.08 and 76,247,903.92
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Solution
The fourth proportional to 129,154,154.24, 178,227,599.08 and 76,247,903.92 is: 105,219,076.62
Step by Step Solution
- Step 1: Write the proportion equation
129,154,154.24 : 178,227,599.08 = 76,247,903.92 : x - Step 2: Convert to fraction form
129,154,154.24/178,227,599.08 = 76,247,903.92/x - Step 3: Cross multiply
129,154,154.24x = 178,227,599.08 × 76,247,903.92 - Step 4: Simplify right side
129,154,154.24x = 13,589,480,850,544,122 - Step 5: Solve for x
x = 13,589,480,850,544,122/129,154,154.24 - Step 6: Final answer
x = 105,219,076.62
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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.