Finding the Fourth Proportional to 879,073,400.90, 1,318,610,101.35 and 265,752,287.30
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Solution
The fourth proportional to 879,073,400.90, 1,318,610,101.35 and 265,752,287.30 is: 398,628,430.95
Step by Step Solution
- Step 1: Write the proportion equation
879,073,400.90 : 1,318,610,101.35 = 265,752,287.30 : x - Step 2: Convert to fraction form
879,073,400.90/1,318,610,101.35 = 265,752,287.30/x - Step 3: Cross multiply
879,073,400.90x = 1,318,610,101.35 × 265,752,287.30 - Step 4: Simplify right side
879,073,400.90x = 350,423,650,490,647,296 - Step 5: Solve for x
x = 350,423,650,490,647,296/879,073,400.90 - Step 6: Final answer
x = 398,628,430.95
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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.