Finding the Fourth Proportional to 128,871,427.06, 177,843,029.93 and 70,134,796.27
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Solution
The fourth proportional to 128,871,427.06, 177,843,029.93 and 70,134,796.27 is: 96,786,269.51
Step by Step Solution
- Step 1: Write the proportion equation
128,871,427.06 : 177,843,029.93 = 70,134,796.27 : x - Step 2: Convert to fraction form
128,871,427.06/177,843,029.93 = 70,134,796.27/x - Step 3: Cross multiply
128,871,427.06x = 177,843,029.93 × 70,134,796.27 - Step 4: Simplify right side
128,871,427.06x = 12,472,984,672,180,062 - Step 5: Solve for x
x = 12,472,984,672,180,062/128,871,427.06 - Step 6: Final answer
x = 96,786,269.51
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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.