Finding the Fourth Proportional to 86,688,299.24, 130,012,550.73 and 51,683,318.49
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Solution
The fourth proportional to 86,688,299.24, 130,012,550.73 and 51,683,318.49 is: 77,513,114.52
Step by Step Solution
- Step 1: Write the proportion equation
86,688,299.24 : 130,012,550.73 = 51,683,318.49 : x - Step 2: Convert to fraction form
86,688,299.24/130,012,550.73 = 51,683,318.49/x - Step 3: Cross multiply
86,688,299.24x = 130,012,550.73 × 51,683,318.49 - Step 4: Simplify right side
86,688,299.24x = 6,719,480,066,880,049 - Step 5: Solve for x
x = 6,719,480,066,880,049/86,688,299.24 - Step 6: Final answer
x = 77,513,114.52
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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.