Finding the Fourth Proportional to 51,351,719.10, 70,872,639.06 and 31,778,911.08
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Solution
The fourth proportional to 51,351,719.10, 70,872,639.06 and 31,778,911.08 is: 43,859,394.27
Step by Step Solution
- Step 1: Write the proportion equation
51,351,719.10 : 70,872,639.06 = 31,778,911.08 : x - Step 2: Convert to fraction form
51,351,719.10/70,872,639.06 = 31,778,911.08/x - Step 3: Cross multiply
51,351,719.10x = 70,872,639.06 × 31,778,911.08 - Step 4: Simplify right side
51,351,719.10x = 2,252,255,294,692,674.50 - Step 5: Solve for x
x = 2,252,255,294,692,674.50/51,351,719.10 - Step 6: Final answer
x = 43,859,394.27
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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.