Finding the Fourth Proportional to 76,961,523.44, 106,203,113.88 and 42,154,368.68
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Solution
The fourth proportional to 76,961,523.44, 106,203,113.88 and 42,154,368.68 is: 58,170,953.71
Step by Step Solution
- Step 1: Write the proportion equation
76,961,523.44 : 106,203,113.88 = 42,154,368.68 : x - Step 2: Convert to fraction form
76,961,523.44/106,203,113.88 = 42,154,368.68/x - Step 3: Cross multiply
76,961,523.44x = 106,203,113.88 × 42,154,368.68 - Step 4: Simplify right side
76,961,523.44x = 4,476,925,217,461,545 - Step 5: Solve for x
x = 4,476,925,217,461,545/76,961,523.44 - Step 6: Final answer
x = 58,170,953.71
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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.