Finding the Fourth Proportional to 279,478,920.24, 385,682,491.08 and 162,073,958.76
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Solution
The fourth proportional to 279,478,920.24, 385,682,491.08 and 162,073,958.76 is: 223,662,980.02
Step by Step Solution
- Step 1: Write the proportion equation
279,478,920.24 : 385,682,491.08 = 162,073,958.76 : x - Step 2: Convert to fraction form
279,478,920.24/385,682,491.08 = 162,073,958.76/x - Step 3: Cross multiply
279,478,920.24x = 385,682,491.08 × 162,073,958.76 - Step 4: Simplify right side
279,478,920.24x = 62,509,088,153,753,984 - Step 5: Solve for x
x = 62,509,088,153,753,984/279,478,920.24 - Step 6: Final answer
x = 223,662,980.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.