Finding the Fourth Proportional to 66,552,775.80, 99,829,163.70 and 18,683,719.80
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Solution
The fourth proportional to 66,552,775.80, 99,829,163.70 and 18,683,719.80 is: 28,025,579.70
Step by Step Solution
- Step 1: Write the proportion equation
66,552,775.80 : 99,829,163.70 = 18,683,719.80 : x - Step 2: Convert to fraction form
66,552,775.80/99,829,163.70 = 18,683,719.80/x - Step 3: Cross multiply
66,552,775.80x = 99,829,163.70 × 18,683,719.80 - Step 4: Simplify right side
66,552,775.80x = 1,865,180,122,439,131.50 - Step 5: Solve for x
x = 1,865,180,122,439,131.50/66,552,775.80 - Step 6: Final answer
x = 28,025,579.70
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1.5x scale
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.