Finding the Fourth Proportional to 45,683,868.11, 68,543,746.49 and 20,106,946.85
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Solution
The fourth proportional to 45,683,868.11, 68,543,746.49 and 20,106,946.85 is: 30,168,318.15
Step by Step Solution
- Step 1: Write the proportion equation
45,683,868.11 : 68,543,746.49 = 20,106,946.85 : x - Step 2: Convert to fraction form
45,683,868.11/68,543,746.49 = 20,106,946.85/x - Step 3: Cross multiply
45,683,868.11x = 68,543,746.49 × 20,106,946.85 - Step 4: Simplify right side
45,683,868.11x = 1,378,205,467,281,852.75 - Step 5: Solve for x
x = 1,378,205,467,281,852.75/45,683,868.11 - Step 6: Final answer
x = 30,168,318.15
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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.