Finding the Fourth Proportional to 28,446,581.12, 39,256,281.92 and 15,393,840.17
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Solution
The fourth proportional to 28,446,581.12, 39,256,281.92 and 15,393,840.17 is: 21,243,499.42
Step by Step Solution
- Step 1: Write the proportion equation
28,446,581.12 : 39,256,281.92 = 15,393,840.17 : x - Step 2: Convert to fraction form
28,446,581.12/39,256,281.92 = 15,393,840.17/x - Step 3: Cross multiply
28,446,581.12x = 39,256,281.92 × 15,393,840.17 - Step 4: Simplify right side
28,446,581.12x = 604,304,929,387,143.88 - Step 5: Solve for x
x = 604,304,929,387,143.88/28,446,581.12 - Step 6: Final answer
x = 21,243,499.42
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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.