Finding the Fourth Proportional to 128,745,803.36, 177,672,575.84 and 70,011,903.52
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Solution
The fourth proportional to 128,745,803.36, 177,672,575.84 and 70,011,903.52 is: 96,618,257.94
Step by Step Solution
- Step 1: Write the proportion equation
128,745,803.36 : 177,672,575.84 = 70,011,903.52 : x - Step 2: Convert to fraction form
128,745,803.36/177,672,575.84 = 70,011,903.52/x - Step 3: Cross multiply
128,745,803.36x = 177,672,575.84 × 70,011,903.52 - Step 4: Simplify right side
128,745,803.36x = 12,439,195,237,859,962 - Step 5: Solve for x
x = 12,439,195,237,859,962/128,745,803.36 - Step 6: Final answer
x = 96,618,257.94
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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.