Finding the Fourth Proportional to 1,560,830,201.76, 2,341,246,313.60 and 396,386,021.28
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Solution
The fourth proportional to 1,560,830,201.76, 2,341,246,313.60 and 396,386,021.28 is: 594,579,288.66
Step by Step Solution
- Step 1: Write the proportion equation
1,560,830,201.76 : 2,341,246,313.60 = 396,386,021.28 : x - Step 2: Convert to fraction form
1,560,830,201.76/2,341,246,313.60 = 396,386,021.28/x - Step 3: Cross multiply
1,560,830,201.76x = 2,341,246,313.60 × 396,386,021.28 - Step 4: Simplify right side
1,560,830,201.76x = 928,037,311,084,371,072 - Step 5: Solve for x
x = 928,037,311,084,371,072/1,560,830,201.76 - Step 6: Final answer
x = 594,579,288.66
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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.