Finding the Fourth Proportional to 158,163,993.80, 237,281,764.56 and 85,379,212.24
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Solution
The fourth proportional to 158,163,993.80, 237,281,764.56 and 85,379,212.24 is: 128,088,129.61
Step by Step Solution
- Step 1: Write the proportion equation
158,163,993.80 : 237,281,764.56 = 85,379,212.24 : x - Step 2: Convert to fraction form
158,163,993.80/237,281,764.56 = 85,379,212.24/x - Step 3: Cross multiply
158,163,993.80x = 237,281,764.56 × 85,379,212.24 - Step 4: Simplify right side
158,163,993.80x = 20,258,930,137,049,948 - Step 5: Solve for x
x = 20,258,930,137,049,948/158,163,993.80 - Step 6: Final answer
x = 128,088,129.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.