Finding the Fourth Proportional to 108,493,072.65, 149,660,807.09 and 68,727,778.70
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Solution
The fourth proportional to 108,493,072.65, 149,660,807.09 and 68,727,778.70 is: 94,806,558.40
Step by Step Solution
- Step 1: Write the proportion equation
108,493,072.65 : 149,660,807.09 = 68,727,778.70 : x - Step 2: Convert to fraction form
108,493,072.65/149,660,807.09 = 68,727,778.70/x - Step 3: Cross multiply
108,493,072.65x = 149,660,807.09 × 68,727,778.70 - Step 4: Simplify right side
108,493,072.65x = 10,285,854,828,652,968 - Step 5: Solve for x
x = 10,285,854,828,652,968/108,493,072.65 - Step 6: Final answer
x = 94,806,558.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.