Finding the Fourth Proportional to 28,446,541.65, 39,256,227.52 and 15,393,800.56
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Solution
The fourth proportional to 28,446,541.65, 39,256,227.52 and 15,393,800.56 is: 21,243,444.79
Step by Step Solution
- Step 1: Write the proportion equation
28,446,541.65 : 39,256,227.52 = 15,393,800.56 : x - Step 2: Convert to fraction form
28,446,541.65/39,256,227.52 = 15,393,800.56/x - Step 3: Cross multiply
28,446,541.65x = 39,256,227.52 × 15,393,800.56 - Step 4: Simplify right side
28,446,541.65x = 604,302,536,946,097.75 - Step 5: Solve for x
x = 604,302,536,946,097.75/28,446,541.65 - Step 6: Final answer
x = 21,243,444.79
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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.