Finding the Fourth Proportional to 19,448,569.80, 29,172,854.70 and 18,332,543.70
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Solution
The fourth proportional to 19,448,569.80, 29,172,854.70 and 18,332,543.70 is: 27,498,815.55
Step by Step Solution
- Step 1: Write the proportion equation
19,448,569.80 : 29,172,854.70 = 18,332,543.70 : x - Step 2: Convert to fraction form
19,448,569.80/29,172,854.70 = 18,332,543.70/x - Step 3: Cross multiply
19,448,569.80x = 29,172,854.70 × 18,332,543.70 - Step 4: Simplify right side
19,448,569.80x = 534,812,633,641,500.38 - Step 5: Solve for x
x = 534,812,633,641,500.38/19,448,569.80 - Step 6: Final answer
x = 27,498,815.55
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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.