Finding the Fourth Proportional to 30,579,068.87, 42,199,121.00 and 16,828,032.99
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Solution
The fourth proportional to 30,579,068.87, 42,199,121.00 and 16,828,032.99 is: 23,222,688.81
Step by Step Solution
- Step 1: Write the proportion equation
30,579,068.87 : 42,199,121.00 = 16,828,032.99 : x - Step 2: Convert to fraction form
30,579,068.87/42,199,121.00 = 16,828,032.99/x - Step 3: Cross multiply
30,579,068.87x = 42,199,121.00 × 16,828,032.99 - Step 4: Simplify right side
30,579,068.87x = 710,128,200,537,318.50 - Step 5: Solve for x
x = 710,128,200,537,318.50/30,579,068.87 - Step 6: Final answer
x = 23,222,688.81
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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.