Finding the Fourth Proportional to 99,730,134.80, 149,595,202.20 and 89,316,515.60
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Solution
The fourth proportional to 99,730,134.80, 149,595,202.20 and 89,316,515.60 is: 133,974,773.40
Step by Step Solution
- Step 1: Write the proportion equation
99,730,134.80 : 149,595,202.20 = 89,316,515.60 : x - Step 2: Convert to fraction form
99,730,134.80/149,595,202.20 = 89,316,515.60/x - Step 3: Cross multiply
99,730,134.80x = 149,595,202.20 × 89,316,515.60 - Step 4: Simplify right side
99,730,134.80x = 13,361,322,210,981,452 - Step 5: Solve for x
x = 13,361,322,210,981,452/99,730,134.80 - Step 6: Final answer
x = 133,974,773.40
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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.