Finding the Fourth Proportional to 28,817,585.04, 39,768,581.28 and 15,764,563.68
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Solution
The fourth proportional to 28,817,585.04, 39,768,581.28 and 15,764,563.68 is: 21,755,269.61
Step by Step Solution
- Step 1: Write the proportion equation
28,817,585.04 : 39,768,581.28 = 15,764,563.68 : x - Step 2: Convert to fraction form
28,817,585.04/39,768,581.28 = 15,764,563.68/x - Step 3: Cross multiply
28,817,585.04x = 39,768,581.28 × 15,764,563.68 - Step 4: Simplify right side
28,817,585.04x = 626,934,332,051,815.88 - Step 5: Solve for x
x = 626,934,332,051,815.88/28,817,585.04 - Step 6: Final answer
x = 21,755,269.61
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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.