Finding the Fourth Proportional to 1,621,282,197.71, 2,431,049,174.52 and 874,698,134.51
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Solution
The fourth proportional to 1,621,282,197.71, 2,431,049,174.52 and 874,698,134.51 is: 1,311,575,604.08
Step by Step Solution
- Step 1: Write the proportion equation
1,621,282,197.71 : 2,431,049,174.52 = 874,698,134.51 : x - Step 2: Convert to fraction form
1,621,282,197.71/2,431,049,174.52 = 874,698,134.51/x - Step 3: Cross multiply
1,621,282,197.71x = 2,431,049,174.52 × 874,698,134.51 - Step 4: Simplify right side
1,621,282,197.71x = 2,126,434,177,842,564,096 - Step 5: Solve for x
x = 2,126,434,177,842,564,096/1,621,282,197.71 - Step 6: Final answer
x = 1,311,575,604.08
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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.