Finding the Fourth Proportional to 28,479,819.54, 39,301,345.68 and 16,718,898.99
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Solution
The fourth proportional to 28,479,819.54, 39,301,345.68 and 16,718,898.99 is: 23,071,607.87
Step by Step Solution
- Step 1: Write the proportion equation
28,479,819.54 : 39,301,345.68 = 16,718,898.99 : x - Step 2: Convert to fraction form
28,479,819.54/39,301,345.68 = 16,718,898.99/x - Step 3: Cross multiply
28,479,819.54x = 39,301,345.68 × 16,718,898.99 - Step 4: Simplify right side
28,479,819.54x = 657,075,228,552,650.75 - Step 5: Solve for x
x = 657,075,228,552,650.75/28,479,819.54 - Step 6: Final answer
x = 23,071,607.87
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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.