Finding the Fourth Proportional to 99,658,541.70, 149,487,812.55 and 45,910,829.70
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Solution
The fourth proportional to 99,658,541.70, 149,487,812.55 and 45,910,829.70 is: 68,866,244.55
Step by Step Solution
- Step 1: Write the proportion equation
99,658,541.70 : 149,487,812.55 = 45,910,829.70 : x - Step 2: Convert to fraction form
99,658,541.70/149,487,812.55 = 45,910,829.70/x - Step 3: Cross multiply
99,658,541.70x = 149,487,812.55 × 45,910,829.70 - Step 4: Simplify right side
99,658,541.70x = 6,863,109,504,208,574 - Step 5: Solve for x
x = 6,863,109,504,208,574/99,658,541.70 - Step 6: Final answer
x = 68,866,244.55
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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.