Finding the Fourth Proportional to 54,340,585.68, 74,990,627.40 and 31,135,246.80
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Solution
The fourth proportional to 54,340,585.68, 74,990,627.40 and 31,135,246.80 is: 42,966,995.34
Step by Step Solution
- Step 1: Write the proportion equation
54,340,585.68 : 74,990,627.40 = 31,135,246.80 : x - Step 2: Convert to fraction form
54,340,585.68/74,990,627.40 = 31,135,246.80/x - Step 3: Cross multiply
54,340,585.68x = 74,990,627.40 × 31,135,246.80 - Step 4: Simplify right side
54,340,585.68x = 2,334,851,691,785,842.50 - Step 5: Solve for x
x = 2,334,851,691,785,842.50/54,340,585.68 - Step 6: Final answer
x = 42,966,995.34
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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.