Finding the Fourth Proportional to 1,553,103,927, 2,141,863,944.30 and 1,214,057,195.28
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Solution
The fourth proportional to 1,553,103,927, 2,141,863,944.30 and 1,214,057,195.28 is: 1,674,289,329.70
Step by Step Solution
- Step 1: Write the proportion equation
1,553,103,927 : 2,141,863,944.30 = 1,214,057,195.28 : x - Step 2: Convert to fraction form
1,553,103,927/2,141,863,944.30 = 1,214,057,195.28/x - Step 3: Cross multiply
1,553,103,927x = 2,141,863,944.30 × 1,214,057,195.28 - Step 4: Simplify right side
1,553,103,927x = 2,600,345,332,888,216,064 - Step 5: Solve for x
x = 2,600,345,332,888,216,064/1,553,103,927 - Step 6: Final answer
x = 1,674,289,329.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.