Finding the Fourth Proportional to 268,722,980.62, 403,148,438.28 and 86,970,158.62
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Solution
The fourth proportional to 268,722,980.62, 403,148,438.28 and 86,970,158.62 is: 130,475,940.48
Step by Step Solution
- Step 1: Write the proportion equation
268,722,980.62 : 403,148,438.28 = 86,970,158.62 : x - Step 2: Convert to fraction form
268,722,980.62/403,148,438.28 = 86,970,158.62/x - Step 3: Cross multiply
268,722,980.62x = 403,148,438.28 × 86,970,158.62 - Step 4: Simplify right side
268,722,980.62x = 35,061,883,624,616,880 - Step 5: Solve for x
x = 35,061,883,624,616,880/268,722,980.62 - Step 6: Final answer
x = 130,475,940.48
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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.