Finding the Fourth Proportional to 128,011,780.06, 176,656,250.46 and 69,274,438.48
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Solution
The fourth proportional to 128,011,780.06, 176,656,250.46 and 69,274,438.48 is: 95,598,721.84
Step by Step Solution
- Step 1: Write the proportion equation
128,011,780.06 : 176,656,250.46 = 69,274,438.48 : x - Step 2: Convert to fraction form
128,011,780.06/176,656,250.46 = 69,274,438.48/x - Step 3: Cross multiply
128,011,780.06x = 176,656,250.46 × 69,274,438.48 - Step 4: Simplify right side
128,011,780.06x = 12,237,762,554,598,744 - Step 5: Solve for x
x = 12,237,762,554,598,744/128,011,780.06 - Step 6: Final answer
x = 95,598,721.84
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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.