Finding the Fourth Proportional to 42,322,554.85, 58,405,730.93 and 31,707,135.70
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Solution
The fourth proportional to 42,322,554.85, 58,405,730.93 and 31,707,135.70 is: 43,756,300.70
Step by Step Solution
- Step 1: Write the proportion equation
42,322,554.85 : 58,405,730.93 = 31,707,135.70 : x - Step 2: Convert to fraction form
42,322,554.85/58,405,730.93 = 31,707,135.70/x - Step 3: Cross multiply
42,322,554.85x = 58,405,730.93 × 31,707,135.70 - Step 4: Simplify right side
42,322,554.85x = 1,851,878,436,255,197.25 - Step 5: Solve for x
x = 1,851,878,436,255,197.25/42,322,554.85 - Step 6: Final answer
x = 43,756,300.70
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1.5x scale
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.