Finding the Fourth Proportional to 260,673,313.80, 391,427,762.70 and 207,264,750.60
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Solution
The fourth proportional to 260,673,313.80, 391,427,762.70 and 207,264,750.60 is: 311,229,317.77
Step by Step Solution
- Step 1: Write the proportion equation
260,673,313.80 : 391,427,762.70 = 207,264,750.60 : x - Step 2: Convert to fraction form
260,673,313.80/391,427,762.70 = 207,264,750.60/x - Step 3: Cross multiply
260,673,313.80x = 391,427,762.70 × 207,264,750.60 - Step 4: Simplify right side
260,673,313.80x = 81,129,177,613,931,472 - Step 5: Solve for x
x = 81,129,177,613,931,472/260,673,313.80 - Step 6: Final answer
x = 311,229,317.77
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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.