Finding the Fourth Proportional to 147,744,930.90, 221,617,396.35 and 86,522,927.70
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Solution
The fourth proportional to 147,744,930.90, 221,617,396.35 and 86,522,927.70 is: 129,784,391.55
Step by Step Solution
- Step 1: Write the proportion equation
147,744,930.90 : 221,617,396.35 = 86,522,927.70 : x - Step 2: Convert to fraction form
147,744,930.90/221,617,396.35 = 86,522,927.70/x - Step 3: Cross multiply
147,744,930.90x = 221,617,396.35 × 86,522,927.70 - Step 4: Simplify right side
147,744,930.90x = 19,174,985,961,453,296 - Step 5: Solve for x
x = 19,174,985,961,453,296/147,744,930.90 - Step 6: Final answer
x = 129,784,391.55
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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.