Finding the Fourth Proportional to 50,290,921.98, 75,772,438.26 and 45,438,868.08
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Solution
The fourth proportional to 50,290,921.98, 75,772,438.26 and 45,438,868.08 is: 68,461,934.89
Step by Step Solution
- Step 1: Write the proportion equation
50,290,921.98 : 75,772,438.26 = 45,438,868.08 : x - Step 2: Convert to fraction form
50,290,921.98/75,772,438.26 = 45,438,868.08/x - Step 3: Cross multiply
50,290,921.98x = 75,772,438.26 × 45,438,868.08 - Step 4: Simplify right side
50,290,921.98x = 3,443,013,826,196,085 - Step 5: Solve for x
x = 3,443,013,826,196,085/50,290,921.98 - Step 6: Final answer
x = 68,461,934.89
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.