Finding the Fourth Proportional to 19,471,806.23, 29,158,269.90 and 11,685,819.52
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Solution
The fourth proportional to 19,471,806.23, 29,158,269.90 and 11,685,819.52 is: 17,499,058.66
Step by Step Solution
- Step 1: Write the proportion equation
19,471,806.23 : 29,158,269.90 = 11,685,819.52 : x - Step 2: Convert to fraction form
19,471,806.23/29,158,269.90 = 11,685,819.52/x - Step 3: Cross multiply
19,471,806.23x = 29,158,269.90 × 11,685,819.52 - Step 4: Simplify right side
19,471,806.23x = 340,738,279,362,628 - Step 5: Solve for x
x = 340,738,279,362,628/19,471,806.23 - Step 6: Final answer
x = 17,499,058.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.