Finding the Fourth Proportional to 20,688,564.15, 31,033,719.66 and 6,115,516.99
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Solution
The fourth proportional to 20,688,564.15, 31,033,719.66 and 6,115,516.99 is: 9,173,533.67
Step by Step Solution
- Step 1: Write the proportion equation
20,688,564.15 : 31,033,719.66 = 6,115,516.99 : x - Step 2: Convert to fraction form
20,688,564.15/31,033,719.66 = 6,115,516.99/x - Step 3: Cross multiply
20,688,564.15x = 31,033,719.66 × 6,115,516.99 - Step 4: Simplify right side
20,688,564.15x = 189,787,239,843,627.03 - Step 5: Solve for x
x = 189,787,239,843,627.03/20,688,564.15 - Step 6: Final answer
x = 9,173,533.67
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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.