Finding the Fourth Proportional to 280,896,709.68, 420,884,949.60 and 149,599,585.12
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Solution
The fourth proportional to 280,896,709.68, 420,884,949.60 and 149,599,585.12 is: 224,154,330.31
Step by Step Solution
- Step 1: Write the proportion equation
280,896,709.68 : 420,884,949.60 = 149,599,585.12 : x - Step 2: Convert to fraction form
280,896,709.68/420,884,949.60 = 149,599,585.12/x - Step 3: Cross multiply
280,896,709.68x = 420,884,949.60 × 149,599,585.12 - Step 4: Simplify right side
280,896,709.68x = 62,964,213,843,412,112 - Step 5: Solve for x
x = 62,964,213,843,412,112/280,896,709.68 - Step 6: Final answer
x = 224,154,330.31
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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.