Finding the Fourth Proportional to 2,153,790,555.92, 2,972,230,972.89 and 1,163,715,972.92
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Solution
The fourth proportional to 2,153,790,555.92, 2,972,230,972.89 and 1,163,715,972.92 is: 1,605,928,045.72
Step by Step Solution
- Step 1: Write the proportion equation
2,153,790,555.92 : 2,972,230,972.89 = 1,163,715,972.92 : x - Step 2: Convert to fraction form
2,153,790,555.92/2,972,230,972.89 = 1,163,715,972.92/x - Step 3: Cross multiply
2,153,790,555.92x = 2,972,230,972.89 × 1,163,715,972.92 - Step 4: Simplify right side
2,153,790,555.92x = 3,458,832,658,359,644,672 - Step 5: Solve for x
x = 3,458,832,658,359,644,672/2,153,790,555.92 - Step 6: Final answer
x = 1,605,928,045.72
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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.