Finding the Fourth Proportional to 28,446,562.12, 39,256,255.70 and 15,393,821.02
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Solution
The fourth proportional to 28,446,562.12, 39,256,255.70 and 15,393,821.02 is: 21,243,472.99
Step by Step Solution
- Step 1: Write the proportion equation
28,446,562.12 : 39,256,255.70 = 15,393,821.02 : x - Step 2: Convert to fraction form
28,446,562.12/39,256,255.70 = 15,393,821.02/x - Step 3: Cross multiply
28,446,562.12x = 39,256,255.70 × 15,393,821.02 - Step 4: Simplify right side
28,446,562.12x = 604,303,774,101,498.75 - Step 5: Solve for x
x = 604,303,774,101,498.75/28,446,562.12 - Step 6: Final answer
x = 21,243,472.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.