Finding the Fourth Proportional to 103,688,831.05, 155,533,246.58 and 65,225,624.65
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Solution
The fourth proportional to 103,688,831.05, 155,533,246.58 and 65,225,624.65 is: 97,838,436.98
Step by Step Solution
- Step 1: Write the proportion equation
103,688,831.05 : 155,533,246.58 = 65,225,624.65 : x - Step 2: Convert to fraction form
103,688,831.05/155,533,246.58 = 65,225,624.65/x - Step 3: Cross multiply
103,688,831.05x = 155,533,246.58 × 65,225,624.65 - Step 4: Simplify right side
103,688,831.05x = 10,144,753,162,022,976 - Step 5: Solve for x
x = 10,144,753,162,022,976/103,688,831.05 - Step 6: Final answer
x = 97,838,436.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.