Finding the Fourth Proportional to 738,110,563.20, 1,107,178,966.80 and 220,547,390.40
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Solution
The fourth proportional to 738,110,563.20, 1,107,178,966.80 and 220,547,390.40 is: 330,825,006.45
Step by Step Solution
- Step 1: Write the proportion equation
738,110,563.20 : 1,107,178,966.80 = 220,547,390.40 : x - Step 2: Convert to fraction form
738,110,563.20/1,107,178,966.80 = 220,547,390.40/x - Step 3: Cross multiply
738,110,563.20x = 1,107,178,966.80 × 220,547,390.40 - Step 4: Simplify right side
738,110,563.20x = 244,185,431,833,508,224 - Step 5: Solve for x
x = 244,185,431,833,508,224/738,110,563.20 - Step 6: Final answer
x = 330,825,006.45
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1.5x scale
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.