Finding the Fourth Proportional to 139,953,505.84, 193,174,257.02 and 81,235,087.98
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Solution
The fourth proportional to 139,953,505.84, 193,174,257.02 and 81,235,087.98 is: 112,126,721.44
Step by Step Solution
- Step 1: Write the proportion equation
139,953,505.84 : 193,174,257.02 = 81,235,087.98 : x - Step 2: Convert to fraction form
139,953,505.84/193,174,257.02 = 81,235,087.98/x - Step 3: Cross multiply
139,953,505.84x = 193,174,257.02 × 81,235,087.98 - Step 4: Simplify right side
139,953,505.84x = 15,692,527,764,490,834 - Step 5: Solve for x
x = 15,692,527,764,490,834/139,953,505.84 - Step 6: Final answer
x = 112,126,721.44
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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.