Finding the Fourth Proportional to 99,652,114.20, 149,478,171.30 and 91,999,363.80
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Solution
The fourth proportional to 99,652,114.20, 149,478,171.30 and 91,999,363.80 is: 137,999,045.70
Step by Step Solution
- Step 1: Write the proportion equation
99,652,114.20 : 149,478,171.30 = 91,999,363.80 : x - Step 2: Convert to fraction form
99,652,114.20/149,478,171.30 = 91,999,363.80/x - Step 3: Cross multiply
99,652,114.20x = 149,478,171.30 × 91,999,363.80 - Step 4: Simplify right side
99,652,114.20x = 13,751,896,661,587,420 - Step 5: Solve for x
x = 13,751,896,661,587,420/99,652,114.20 - Step 6: Final answer
x = 137,999,045.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.