Finding the Fourth Proportional to 19,487,785.80, 29,189,688.30 and 16,128,553.80
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Solution
The fourth proportional to 19,487,785.80, 29,189,688.30 and 16,128,553.80 is: 24,158,078.45
Step by Step Solution
- Step 1: Write the proportion equation
19,487,785.80 : 29,189,688.30 = 16,128,553.80 : x - Step 2: Convert to fraction form
19,487,785.80/29,189,688.30 = 16,128,553.80/x - Step 3: Cross multiply
19,487,785.80x = 29,189,688.30 × 16,128,553.80 - Step 4: Simplify right side
19,487,785.80x = 470,787,458,151,780.56 - Step 5: Solve for x
x = 470,787,458,151,780.56/19,487,785.80 - Step 6: Final answer
x = 24,158,078.45
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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.