Finding the Fourth Proportional to 314,828,731.44, 434,465,158.53 and 173,699,944.74
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Solution
The fourth proportional to 314,828,731.44, 434,465,158.53 and 173,699,944.74 is: 239,706,756.38
Step by Step Solution
- Step 1: Write the proportion equation
314,828,731.44 : 434,465,158.53 = 173,699,944.74 : x - Step 2: Convert to fraction form
314,828,731.44/434,465,158.53 = 173,699,944.74/x - Step 3: Cross multiply
314,828,731.44x = 434,465,158.53 × 173,699,944.74 - Step 4: Simplify right side
314,828,731.44x = 75,466,574,025,944,016 - Step 5: Solve for x
x = 75,466,574,025,944,016/314,828,731.44 - Step 6: Final answer
x = 239,706,756.38
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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.