Finding the Fourth Proportional to 1,557,504,047.20, 2,336,256,070.80 and 944,780,130.40
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Solution
The fourth proportional to 1,557,504,047.20, 2,336,256,070.80 and 944,780,130.40 is: 1,417,170,195.60
Step by Step Solution
- Step 1: Write the proportion equation
1,557,504,047.20 : 2,336,256,070.80 = 944,780,130.40 : x - Step 2: Convert to fraction form
1,557,504,047.20/2,336,256,070.80 = 944,780,130.40/x - Step 3: Cross multiply
1,557,504,047.20x = 2,336,256,070.80 × 944,780,130.40 - Step 4: Simplify right side
1,557,504,047.20x = 2,207,248,315,218,215,680 - Step 5: Solve for x
x = 2,207,248,315,218,215,680/1,557,504,047.20 - Step 6: Final answer
x = 1,417,170,195.60
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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.